SKEMA MODUL PT3

SKEMA KERTAS MODEL PT3 1













SKEMA KERTAS MODEL PT3 2

SKEMA PEMARKAHAN
PERCUBAAN PT3 SCIENCE 2019

No Suggested answer Marks
Section A : 20 MARKS 20

NO OF ANSWER NO OF ANSWER NO OF ANSWER NO OF ANSWER

QUESTION QUESTION QUESTION QUESTION

1 C 6 B 11 B 16 A

2 D 7 C 12 D 17 D

3 D 8 B 13 D 18 C

4 C 9 C 14 C 19 D

5 C 10 D 15 D 20 A

SECTION B: 20 MARKS

1 1. REMOTE SENSING 4
2. ROCKET
3.SPACE TELESCOPE 2
4.ASTRONOMY 2
2
2 (a)

Unicellular organism Multicellular organism
Organisma unisel Organisma multisel
Paramecium Spirogyra
Amoeba Mucor

(b) Chlorophyl , photosynthesis

3

(b) raindrop, dispersed 2

4 (a) (i) Red blood cell 2
(ii) Plasma

(b) J: White blood cell 2
Function: Kill bacteria/microorganism in our body
Produce antibody to fight against disease

5 a. (i) To measure( electric) current 2
(ii)To measure (electric ) voltage

b. (i) 0.9 A (ii) 2.6V 2

SECTION C: 60 MARKS 1
6 (a) light intensity

(b) type of plant/size of plant/ surrounding temperature/the presence of wind/air humidity 1

(c) P1: The plant P will die. 2
P2: It cannot carry out photosynthesis with the absent of light.

(d) To show/detect the presence of starch in the leaf. 1

(e) (i) Dark blue color 1
2
light
Total 8
(ii) water + carbon dioxide glucose + oxygen

chlorophyll

3 -5 corrects : 1 mark
All corrects : 2 marks

7 (a) P1: Drink enough water 2
P1: consume food that high with fibres/ eat more vegetables and fruit

(b) P1: Undigested food can’t be eliminated from the body 2
P2: The bacteria will be accumulated in the large intestine.

(c) Total calorific value: 2
Fried rice : 1 X 2 200 kJ = 2 200 kJ
Orange juice : 2 X 160 kJ = 320 kJ
Kuih Lapis : 2 X 240 kJ = 480 kJ
Total = 3 000 kJ
Procedure : 1 mark

Answer : 1 mark 2
Total 8
(d) P: Yes / Agree
R: - People who lived in cold countries release more heat to the environment. 1
- She needs more energy to maintain her body temperature

8 (i)

(ii) Frictional force is the force that resists movement between two surfaces that are in contact 1
with each other. 1
1
(iii) 4N 1

(b) Less than 4N or any number that less than 4N 2

(c)(i) Second class lever 1
2
(ii) Load x Distance of load from the fulcrum = Force x Distance of force from fulcrum 8
600 x 0.5 = Force x 1.5 2
Force = 600 x 0.5 1
1.5 2
= 200 N 1

(iii) A smaller force is needed // more crops can be carried at one time// save time// the work
become easier.

(iv) At K. A greater distance of force enables a smaller force( to be used to tighten the nut.)

Total

9. (a) (i) P : Beta radiation
R : Alpha radiation

(b) Q is neutral

(c)- Q ray
- The penetrating power of Q is the highest among the three types of ray.

(d) Store in thick lead container.

(e) T1/2 T1/2 T1/2 2
84g  42g 21g 10.5g

3 T1/2 = 21.6
T1/2 = 7.2 hours

method : 1 mark 2
Answer: 1 mark

(f)- Area W and Y
- The average dose of background radiation is more than 0.2 µSv/h (safe level/normal level) .

10. (a)(i) P1: Magenta, red and blue lights are reflected by the shirt. Total 10
P2: Overlap of blue and red lights causes the shirt to appear magenta. 2

(ii)P1: No light is reflected 2
E1: Black shirt absorb all colors in white light.

(b) P1: Formation of rainbow 3
E1: Water sprays from sprinkler system acted like water droplets/prism.
E2: The rain droplets refract and disperse into seven different colour of lights.

(c)(i) The signboard reflects light to the observer’s eyes. 1

(ii) The will be pass through the board/ / The light will not be reflected. 1

(d) P1: Arrange a ray box and a plane mirror on a sheet of white paper. 3
P2: Draw the normal line of the plane mirror.
P3: Direct the light beam towards the plane mirror at an angle.
P4: Marks and draw the line of incidence and reflected ray by using a pencil and ruler.
P5: Measure the angle of reflection by using a protractor.

Any of three corrects methods

11 (a)(i) gas P: carbon dioxide Total 12
1

(ii) diffusion 1
(b) (i)The alveoli of emphysema patients have larger air spaces while the healthy alveoli have 1

many smaller air spaces.// The air sacs in alveoli of emphysema patient are damaged while
the healthy one not damaged.

(ii) P1 : The damages of alveoli reduces the surface area of the lungs. 2
P2 : This lower the amount of oxygen that reaches your bloodstream.
P3 : The body cells not get sufficient amount of oxygen to carry out cell respiration for energy

production. 2
Any of two corrects points 2
(c) (i) F1: Difficulty in breathing/ short breath
3
E1 : The dust particles in the air can cause asthma
P1: Coughing /Flu
E1 : The dust particles can irritates the passage of air in our lungs.
Any reasonable answer
(ii) Able to suggest & explain actions can be taken to reduce API.
Sample answers:
F1: Avoid open burning
E1: Reduce amount of carbon dioxide/monoxide
F1 : Carpool/use public transport
E1 : Reduce amount of carbon dioxide/monoxide
F1: Make campaign
E1: Increase awareness
F1: Plant a tree
E1: Reduce amount of carbon dioxide
[Accept any reasonable answer]
[Max : 2 marks]
Note: E depend to F

(d) Able to sketch a model by using all given materials.

Functional diagram with or without label: 1 mark

Able to explain how the model works

E1 : Paper clip is used to make a hole in the handkerchief. The hole is use to tight the rubber band.
E2 : Handkerchief will filter the air from dust and harmful substances before entering the nose.

Total 12
Overall marks 100

SKEMA KERTAS MODEL PT3 3

NO PANDUAN PEMARKAHAN MARKAH JUMLAH
SOALAN SAINS 2019 MARKAH

1B SECTION A/BAHAGIAN A
2D
3A JAWAPAN
4C
5A 1
6D
7A 1
8D
9B 1
10 D
11 B 1
12 A
13 B 1
14 D
15 C 1
16 B
17 C 1
18 B
19 C 1
20 C
1

1
20

1

1

1

1

1

1

1

1

1

1

SECTION B/BAHAGIAN B

NO JAWAPAN MARKAH JUMLAH
SOALAN MARKAH
Pupil were able to label the Sun structure
1(a) Murid dapat melabel struktur matahari

i. Radiation zone/Zon radiasi 1 2
ii. Chromosphere/Kromosfera 1 2
4
1(b) Pupil were able to recognize gas planet
Murid dapat mengenal pasti planet gas

i. Saturn/Zuhal 1
ii. Jupiter/Musytari 1

Nota: Terima sebarang tandaan

4

2(a) Pupil were able to match cell blood type with the correct info WCR

Murid dapat memadankan jenis sel darah dengan maklumat yang

tepat

Has no nucleus 12
⚫ Tiada nukleus

Red blood cell ⚫
Sel darah merah

Helps in blood clotting
⚫ Membantu pembekuan

darah

White blood cell The largest blood cell
Sel darah putih ⚫ Sel darah yang paling

besar 1

2(b) Pupil were able to determine the blood group that is suitable to WCR
be donated to blood group A
Murid dapat menentukan kumpulan darah yang sesuai
didermakan kepada kumpulan darah A

i. A 1 2
ii. O 1 4

Nota: Terima sebarang tandaan 4

NO JAWAPAN MARKAH JUMLAH
SOALAN WCR MARKAH
Pupil were able to determine the fuse suitable for 3.5 A appliance
3(a) Murid dapat menentukan fius yang sesuai untuk alat 3.5 A

5A 1 1

Nota: Terima sebarang tandaan

3(b) Pupil were able to determine the building for three-phase wiring WCR
Murid dapat menentukan bangunan untuk pendawaian tiga fasa

i. Shopping mall/Pusat beli-belah 12
ii. Hospital/Hospital 1

Nota: Terima sebarang tandaan

3(c) Pupil were able to determine the symbol for fuse WCR
Murid dapat menentukan simbol fius

11

Nota: Terima sebarang tandaan 44

4(a) Pupil were able to determine solute, solvent or solution 1 3
Murid dapat menentukan solute, solvent or solution 1 1
i. Solute/Zat terlarut 1
ii. Solvent/Pelarut WCR
iii. Solution/Larutan
1
4(b) Pupil were able to determine state of matter for steam
Murid dapat menentukan keadaan jirim bagi wap air

✓

44

NO JAWAPAN MARKAH JUMLAH
SOALAN MARKAH
Pupil were able to list the characteristics of flower pollinated by
5. wind and insects
Murid dapat menyenaraikan ciri-ciri bunga yang didebungakan
oleh angin dan serangga

Wind/Angin 14
- White in colour/Berwarna putih 1
- Small size/Bersaiz kecil

Insects/Serangga 1
- Smell nice/Berbau wangi 1
- Produce nectar/Menghasilkan nektar
44

SECTION C/BAHAGIAN C

NO JAWAPAN MARKAH JUMLAH
SOALAN MARKAH
Pupil were able to determine animal and plant cell
6(a/i) Murid dapat menentukan sel haiwan dan sel tumbuhan

Cell P/Sel P: Plant Cell // Sel Tumbuhan 12
Cell Q/Sel Q: Animal Cell // Sel Haiwan 1

6(a/ii) Pupil were able to state function of mitochondrion
Murid dapat menyatakan fungsi mitokondrion

Generate energy // Menjana tenaga 1 1

Nota: Tolak menyimpan/membekalkan tenaga 1 1
FAO
6(a/iii) Pupil were able to give reason of why mitochondrion is 1
abundance in sperm compared to ovum 1 1
Murid dapat memberi alasan mengapa mitokondrion lebih banyak 1
dalam sperma berbanding ovum 1
1
Sperms need energy to swim while ovum does not move by itself // 8
Sperma memerlukan tenaga untuk berenang tetapi ovum tidak
bergerak sendiri

Nota: Jawapan menunjukkan perbandingan keperluan tenaga

6(b/i) Pupil were able to state the process which cells produce new cells
Murid dapat menyatakan proses sel menghasilkan sel-sel baharu

Cell division // Pembahagian sel

6(b/ii) Pupil were able to state one importance of cell division
Murid dapat menyatakan satu kepentingan pembahagian sel

P1 – Replace dead or damaged cells //
Menggantikan sel yang telah mati atau rosak

P2 – For organisms’ growth //
Untuk pertumbuhan organisma

6(c) Pupil were able to explain the police’s deduction 1P + 1E
Murid dapat menjelaskan kesimpulan pihak polis 1
1
P – Nucleus in the cells contain genetic information//
Nukleus dalam sel membawa maklumat genetik 8

E – Each individual has different genetic information//
Setiap individu mempunyai maklumat genetik yang berbeza

NO JAWAPAN MARKAH JUMLAH
SOALAN MARKAH
Pupil were able to give meaning to the term ‘passive smoker’
7(a/i) Murid dapat memberi maksud kepada istilah ‘perokok pasif’

People around smokers that inhale cigarette smoke 11
Orang di sekeliling perokok yang turut menyedut asap rokok

7(a/ii) Pupil were able to list two substance contained in cigarette
smoke
Murid dapat menyenaraikan bahan dalam asap rokok 1 2
1 1
P1 – Tobacco tar/Carcinogen // Tar tembakau/Karsinogen 3
P2 – Carbon monoxide // Karbon monoksida 1
P3 – Nicotine // Nikotin
P4 – Sulphur dioxide gas/acidic gas // Gas sulfur dioksida/gas 1
1
berasid 1

7(a/iii) Nota: Terima jawapan lain yang terdapat dalam Buku Teks
Tingkatan 3 hal. 57
Pupil were able to give one effect of cigarette smoke to feotus
Murid dapat memberi satu kesan rokok kepada fetus

P1 – Stillborn/Miscarriage // Kematian/Keguguran
P2 – Mental or physical impaired // Kecacatan mental atau fizikal
P3 – Born premature // Lahir tidak cukup bulan

7(b/i) Pupil were able to state the observation
Murid dapat menyatakan pemerhatian

Colour of cotton wool After activity
Warna kapas putih Selepas aktiviti
Temperature Brown/Yellow
Suhu Perang/Kuning
More than 27°C
Colour of universal indicator Lebih daripada 27°C
Warna penunjuk universal Red/Orange/Yellow
Merah/Jingga/Kuning

7(b/ii) Pupil were able to state the part of respiratory system represents FAO
by cotton 1
Murid dapat menyatakan bahagian sistem respirasi yang diwakili 1
oleh kapas

Lungs // Peparu

88

NO JAWAPAN MARKAH JUMLAH
SOALAN MARKAH
Pupil were able to state the meaning of half-life
8(a/i) Murid dapat menyatakan maksud separuh hayat

The time taken by a radioactive substance to reduce its 1 1
mass/reactivity to half //
Masa yang diambil oleh bahan radioaktif untuk mengurangkan
jisim/keaktifannya kepada separuh

8(a/ii) Pupil were able to state the radioactive substance used in FAO 1
8(a/iii) radioactive dating 1
Murid dapat menyatakan bahan radioaktif yang digunakan dalam
pentarikhan radioaktif

Carbon–14 // Karbon–14

Pupil were able to find the half-life of Carbon–14 based on graph
Murid dapat mencari separuh hayat bagi Karbon–14 berdasarkan
graf

8(a/iv) 5700 years // 5700 tahun 1 1
2
Nota: Terima jawapan dalam julat 5600 – 5800 tahun ECF

Pupil were able to calculate mass of Carbon–14 after 17100 years 1
Murid dapat mengira jisim Karbon–14 selepas 17100 tahun 1

0 → 5700 → 11400 → 17100
200 → 100 → 50 → 25 g

8(b) Pupil were able to state the safest way to keep radioactive
substance
Murid dapat menyatakan cara paling selamat untuk menyimpan
bahan radioaktif

Keep in a thick lead box/concrete box // Simpan dalam kotak 1 1
plumbum yang teba /kotak konkrit

8(c/i) Pupil were able to give one danger of radioactive ray to human
health
Murid dapat menyatakan satu bahaya sinaran radioaktif kepada 1 1
kesihatan manusia

P1 – Damage of cells and tissues // Pemusnahan sel dan tisu
P2 – Skin burns // Kulit melecur
P3 – Genetic mutation // Mutasi genetik
P4 – Cause cancer // Menyebabkan kanser
P5 – Sterility // Kemandulan
P6 – Blindness // Buta

NO JAWAPAN MARKAH JUMLAH
SOALAN MARKAH
Pupil were able to give reason on why astronaut has higher risk
8(c/ii) of radioactive ray exposure
Murid dapat memberi sebab kenapa angkasawan mempunyai
risiko lebih tinggi untuk terdedah kepada pendedahan sinar
radioactive

Space doesn’t have atmosphere to block cosmic rays 1 1
Angkasa tidak mempunyai atmosfera menghalang sinaran kosmik

8(c/iii) Pupil were able to name other profession that has high risk of
radioactive ray exposure
Murid dapat menamakan kerjaya lain yang mempunyai risiko 1 1
tinggi terhadap pendedahan sinaran radioaktif

P1 – Pilot/Cabin crew // Juruterbang/Kru kapal terbang
P2 – Nuclear engineer // Jurutera nuclear
P3 – Archaeologist // Ahli arkeologi

8(d) Pupil were able to name radioactive ray P
Murid dapat menamakan sinaran radioaktif P

Beta particle // Zarah beta 11

9(a/i) Pupil were able to write word equation for reaction of 10 10
magnesium and oxygen FAO
Murid dapat menulis persamaan perkataan bagi tindak balas 1
antara magenisium dan oksigen 1 1
1 1
P1 – Oxygen // oksigen 1
P2 – Magnesium oxide // magnesium oksida 1
FAO 1
9(a/ii) Pupil were able to state the function of potassium permanganate
Murid dapat menyatakan fungsi kalium permanganat 1

Release/Supply oxygen // Membebaskan/membekalkan oksigen

9(a/iii) Pupil were able to recognize metal that is more reactive
Murid dapat mengenal pasti logam yang lebih reaktif

Magnesium / Magnesium

9(a/iv) Pupil were able to predict reaction of gold and oxygen 1
Murid dapat meramalkan tindak balas emas dengan oksigen

No reaction/No changes/Gold remains as gold //
Tiada tindak balas/Tiada perubahan/Emas kekal menjadi emas

NO JAWAPAN MARKAH JUMLAH
SOALAN MARKAH
Pupil were able to give one method to avoid oxidation of iron
9(b) Murid dapat memberi satu cara mengelakkan pengoksidaan besi

P1 – Paint the gate // Catkan pagar 11
P2 – Cover with oil/grease // Litupi dengan minyak/gris

Nota: Tolak penggunaan syelek
Tolak ganti dengan ‘stainless steel’

9(c/i) Pupil were able to determine substance X in mineral extraxtion FAO
Murid dapat menentukan bahan X dalam pengekstrakan mineral

Coke // Arang kok 11

9(c/ii) Pupil were able to state one usage of Z (slag)
Murid dapat menyatakan kegunaan Z (sanga)

Base of building (and road) // Tapak bangunan (dan jalan) 11

9(c/iii) Pupil were able to explain whether magnesium can be extraxted 1P+1E
by using the same method or not
Murid dapat menjelaskan sama ada magnesium dapat diekstrak 1 2
dengan menggunakan kaedah yang sama atau tidak 1 10

P – Cannot / Tidak boleh 10
E – Magnesium is more reactive than carbon/Magnesium is located

above carbon in reactivity series of metals/Magnesium is
extracted by electrolysis method//
Magnesium lebih reaktif berbanding karbon/Magnesium
terletak di atas karbon dalam siri kereaktifan logam/Magnesium
boleh diekstrak menggunakan kaedah elektrolisis

10(a) Pupil were able to determine Process X and Y in carbon cycle FAO
Murid dapat menentukan Process X dan Y dalam kitar karbon

X : Photosynthesis // Fotosintesis 12
Y : Respiration // Respirasi 1

10(b/i) Pupil were able to state two effects of haze
Murid dapat menyatakan dua kesan jerebu
1 2
P1 – Reduce clarity/sight distance/Air pollution/Lower transpiration 1
rate // Mengurangkan kejelasan/jarak penglihatan/Pencemaran
udara/Merendahkan kadar transpirasi

P2 – Cause health problems //
Menyebabkan masalah kesihatan

P3 – Raise surrounding’s temperature//
Meningkatkan suhu persekitaran

Nota:
Masalah kesihatan: sakit tekak/asma/radang peparu/sakit kepala

NO JAWAPAN MARKAH JUMLAH
SOALAN 1P + 1E MARKAH
Pupil were able to give reason on why wildfire is hard to
10(b/ii) extinguish
Murid dapat memberi alasan tentang kenapa kebakaran hutan
sukar dipadam

P – Combustion needs heat, oxygen and fuel// 1 2
1
Pembakaran memerlukan haba, oksigen dan bahan bakar
E1 – Draught season has higher heat and lower humidity//

Musim kemarau mempunyai haba yang tinggi dan kelembapan

yang rendah
E2 – Draught season caused soil to dry and //

Musim kemarau menyebabkan tanah menjadi kering dan

mudah terbakar
E3 – Draught season cause plant/tree/grass to dry and easily caught

by fire//

Musim kemarau menyebabkan tumbuhan/pokok/rumput

menjadi kering dan mudah disambar api
E4 – Rivers might dry and there will be no resource of water to

extinguish the fire//

Sungai mungkin kering dan tiada sumber air untuk memadam

api

Tolak: Hutan terlalu luas

10(c/i) Pupil were able to suggest one method to increase usage of public 1S + 1 E
transport
Murid dapat mencadangkan satu langkah untuk meningkatkan 1 2
penggunaan pengangkutan awam 1

S1 – Subsidize petrol for public transportation//
Mensubsidikan petrol kepada pengangkutan awam

E1 – Ensure cheaper ticket price
Membolehkan harga tiket yang lebih murah

S2 – Increase personal vehicle price (or its road tax, etc)//
Meningkatkan harga kereta persendirian (atau cukai jalannya)

E2 – Less people buy car/personal vehicle
Mengurangkan pembelian kereta/kenderaan persendirian

S3 – Increase the efficiency of public transportation (more buses..)//
Meningkatkan kecekapan pengangkutan awam (lebih banyak
bas..)

E3 – People will choose public transportation over driving//
Masyarakat akan memilih pengangkutan awam berbanding
memandu sendiri

S4 – Provide phone apps for public transport//
Sediakan aplikasi telefon untuk pengangkutan awam

E4 – Easy to accsess//
Senang diakses

Nota: Terima sebarang jawapan lain yang sesuai
Kempen – S3

NO JAWAPAN MARKAH JUMLAH
SOALAN MARKAH
Pupil were able to justify their choice
10(c/ii) Murid dapat mewajarkan pilihan mereka 1C + 3R

C1: Sampan Ferry//Feri Sampan 1 4
R1: Save money to operate//Menjimatkan wang untuk dikendalikan 1
R2: Cheaper price will ensure lower salary citizen can access to the 1

service//Harga yang murah membolehkan rakyat 1
berpendapatan rendah juga boleh mengakses perkhidmatan ini
R3: Can change the engine to petrol or solar powered (Renewable)//
Boleh tukar engin diesel kepada kuasa petrol atau solar
R4: Most dwellings and villages located near river//Kebanyakan
penempatan dan kampung terletak berhampiran sungai
R5: Cooperate with other company to provide land vehicle services
at area with no river// Bekerjasama dengan syarikat lain untuk
menyediakan perkhidmatan kenderaan darat di kawasan tiada
sungai
R6: It is cheaper to train the ferry captain than a pilot//Melatih kapten
feri lebih murah berbanding melatih seorang juruterbang
R7: Make the wearing of life jacket compulsory//Mewajibkan
pemakaian jaket keselamatan.
R8: Provide job opportunities//Menyediakan peluang pekerjaan
R9: Bigger space/Ruang lebih luas

C2: Small aircraft//Kapal terbang kecil
R1: Use of gasoline – less soot compared to diesel//

Penggunaan gasolin – kurang jelaga berbanding diesel
R2: Enable more people to travel/Connect more people in the rural

area//Membolehkan lebih ramai melakukan perjalanan/
Menguhubungkan lebih ramai orang di kawasan pedalaman
R3: The construction of airport can help develop an area//Pembinaan

lapangan terbang membantu untuk membangunkan sesuatu
kawasan

R4: Provide job opportunities//Menyediakan peluang pekerjaan
R5: Can travel faster//Perjalanan lebih cepat

R6: Safer//Lebih selamat

Nota: Terima R lain yang bersesuaian dan berkaitan 12 12
-
- C dan R mesti berpadanan
- Hanya C tanpa R – 0 markah
- Tiada C, ada R – boleh beri markah
-
Boleh beri R yang berlawanan (kenapa tak pilih yang satu

lagi)

NO JAWAPAN MARKAH JUMLAH
SOALAN 1P + 2E MARKAH
Pupil were able to justify the action of wearing rainboot
11(a/i) compared to high heels
Murid dapat mewajarkan tindakan memakai but hujan
berbanding kasut bertumit tinggi

P1: Rainboot shoes exert less pressure to the soil surface (or vice 1 3
versa)// 1
Kasut but hujan mengenakan tekanan yang rendah kepada 1
permukaan tanah (atau sebaliknya)

E1: Surface area of the rainboot shoes’ sole is greater than high heels
(or vice versa)//
Luas permukaan tapak kasut but hujan lebih besar berbanding
kasut tumit tinggi (atau sebaliknya)

E2: Muddy soil at paddy field will cause high heels to sink into the
mud (or vice versa)//
Tanah berlumpur di sawah padi akan menyebabkan kasut tumit
tinggi tenggelam ke dalam lumpur (atau sebaliknya)

11(a/ii) Pupil were able to give reason of the shape of athlete’s body 1P + 1E
Murid dapat memberi alasan tentang bentuk badan atlet

P1: The dive-start formation has smaller surface area, hence higher 1 2
pressure exerts on the water surface// 1 3
Bentuk badan tirus mempunyai luas permukaan yang kecil dan
menghasilkan tekanan yang tinggi ke atas permukaan air

E1: Swimmer can enters water easier//
Perenang boleh masuk ke dalam air dengan lebih mudah

E2: Prevent injury caused by the force of the water surface to body//
Menghalang kecederaan yang dikenakan oleh daya pada
permukaan air kepada badan

11(b) Pupil were able to give reason on why climbers bring along 2P + 1E
oxygen tank
Murid dapat memberi alasan mengapa pendaki membawa tangka
oksigen

P1: Air pressure at higher altitude is lower// 1
Tekanan udara di kawasan altitude tinggi rendah 1
1
P2: The volume of oxygen in the mountain air decreasing//
Isipadu oksigen dalam udara pergunungan menurun

E1: Oxygen tank will provide enough oxygen supply//
Tangki oksigen membekalkan oksigen yang mencukupi

E2: Climbers might faint due to lack of oxygen//
Pendaki mungkin pengsan akibat kekurangan oksigen

Nota:
- 2P + 1E = 3m
- 1P + 2E = 2m

Nota:
Pengsan → Sesak nafas/kesukaran bernafas ✓

→ Mati 

NO JAWAPAN MARKAH JUMLAH
SOALAN 2L +2E MARKAH
Pupil were able to use all items to create toy car model
11(c) Murid dapat menggunakan semua bahan untuk mencipta model
kereta mainan

Sketch/Lakaran:

L1 : All items are used and functional toy car// 1 4
Semua bahan digunakan dan kereta mainan berfungsi 1 12
1
L2 : At least three items are labelled// 1
Sekurang-kurangnya 3 bahan dilabel
12
Explanation:
E1: State at least one of the item’s function//

Menyatakan kegunaan sekurang-kurangnya satu fungsi barang
E2: The car moves when air exits from the balloon (how the car

moves)//
Kereta bergerak apabila udara keluar dari belon (bagaimana
kereta bergerak)

Nota:
Belon mesti di luar botol. Sekiranya belon di dalam botol, botol
mesti ditebuk untuk mengelakkan tekanan udara yang tinggi di
dalam botol.

SKEMA KERTAS MODEL PT3 4

JAWAPAN

BAB 1 (ii) Mengawal saiz anak mata (v) Koklea/Cochlea
Controls the size of eye (vi) Reseptor di dalam koklea
1.1
1 (a) Otak/Brain (iii) Otot silia/Ciliary muscles dirangsang untuk menukarkan
(iv) Kornea/Cornea getaran bunyi kepada impuls
(i) Pusat kawalan/Control centre (v) Bahagian yang paling peka kepada Receptors in the cochlea are stimulated to
(b) Saraf tunjang/Spinal cord cahaya converted sound vibrations to nerve
Part that has high sensitivity to light
(ii) luar kawal/involuntary (vi) Bahagian yang tidak peka kepada impuls
(c) Saraf periferi/Peripheral nerve cahaya
Part that is not sensitive to light (vii) Saraf auditori/Auditory nerve
(iii) reseptor/receptor; efektor/effector (vii) Sklera/Sclera 5 (a) (i) Hidung/Nose
2 (a) Sel deria yang terdapat di dalam organ (viii) Koroid/Choroid (ii) Lubang hidung/Nostrills
(x) Membias dan memfokuskan (iii) Sel-sel deria bau/Smell sensory cells
deria yang mengesan rangsangan cahaya ke atas retina (iv) Rongga hidung/Nasal cavity
Sensory cells found in the sensory organ that Refracts and focuses light onto the (b) Menghasilkan impuls saraf apabila
retina dirangsang oleh bau
detects stimuli Generates nerve impulses when stimulated by
(b) Otot atau kelenjar yang bergerak balas (xi) Anak mata/Pupil
terhadap rangsangan (xii) Retina/Retina the smell
Muscles or glands that response towards stimuli (xiii) Mengekalkan bentuk mata dan
3 (a) disedari/consciously; otak/brain (c) Deria rasa/Sense of taste
(b) perlahan/slow membantu memfokuskan cahaya 6 (a) (i) Reseptor sakit/Pain receptor;
(c) Menyanyi/Singing; Bertutur/Talking; Maintains the eye shape and helps focus Mengesan kesakitan/Detects pain
(ii) Reseptor sejuk/Cold receptor;
Membaca/Reading light Mengesan rasa sejuk
(d) (i) Reseptor/Receptor Detects coldness
(xiv) Mengekalkan bentuk mata dan (iii) Reseptor sentuhan/Touch receptor;
(ii) Neuron deria/Sensory neurone membantu memfokuskan cahaya Mengesan sentuhan/Detects touch
(iii) Serebrum/Cerebrum ke retina (iv) Reseptor haba/Heat receptor;
(iv) Neuron motor/Motor neurone Mengesan haba/Detects heat
(v) Efektor/Effector Maintains eye shape and helps focus light (v) Reseptor tekanan/Pressure receptor;
(e) automatik/automatic; tidak dapat/cannot onto the retina Mengesan tekanan/Detects pressure
(f) pantas/Rapid (b) Orang itu akan terdedah kepada
(g) Peristalsis/Peristalsis; 2 3, 1, 4, 5, 2 kecederaan
Pernafasan/Breathing 3 (a) Sel rod/Rod cell That person will be exposed to injury
denyutan jantung/heartbeat 7 ( i) 3 Bilangan reseptor
(h) (i) Reseptor/Receptor (b) Sel kon/Cone cell The number of receptors
(ii) Neuron deria/Sensory neurone (c) retina/retina
(iii) Saraf tunjang/Spinal cord; (d) hitam dan putih/black and white 3 Ketebalan epidermis
Medula oblongata/Medulla oblongata (e) berwarna/colourful The thickness of epidermis
(iv) Neuron motor/Motor neurone 4 (a) (i) Osikel/Ossicle
(v) Efektor/Effector (ii) 3 Leher/Neck
4 (a) Tindakan luar kawal/Involuntary action (ii) Salur separuh bulat
(b) Suresh mengelip matanya beberapa kali Semicircular canal (iii) 3 Banyak reseptor dan epidermis
supaya habuk yang memasuki mata yang nipis
dapat disingkirkan (iii) Saraf auditori/Auditory nerve A lot of receptors and thin epidermis
Suresh blinking his eyes a few times so that dust (iv) Koklea/Cochlea 8 (a) Masam/Sour
entering the eyes can be removed (v) Tiub Eustachio/Eustachian tube (b) Masin/Salty
(c) Mata akan cedera atau rosak (vi) Jendela bujur/Oval window (c) Pahit/Bitter
Eyes will be injured or damaged (vii) Gegendang telinga/Eardrum (d) Umami/Umami
5 (a) kecederaan/injuries (viii) Salur telinga/Ear canal (e) Manis/Sweet
(b) mengesan/detect; (ix) Cuping telinga/Earlobe 9 (a) Memicit hidung semasa memakan ubat
bergerak balas/respond (b) (i) Menerima gelombang bunyi itu
(c) perubahan/changes Receive sound waves Pinching the nose while consuming the
(d) badan/body (ii) Menyalurkan gelombang bunyi
medicine
ke gegendang telinga
Channeling sound waves to the ear (b) Apabila hidung dipicit, sel-sel deria
bau dihalang daripada mengesan bahan
1.2 drum kimia daripada makanan

1 (a) A Kanta mata/Eye lens (iii) Bergetar apabila gelombang bunyi When the nose is pinched, the sense of smell in
diterima
B Sklera/Sclera prevented from detecting the chemical from the
Vibrate when sound waves are received
C Koroid/Choroid (iv) Menguatkan getaran bunyi food

D Retina/Retina Amplify sound vibration 10 (a) Jawapan murid/Student’s answer
(v) Memindahkan getaran bunyi ke (b) Ilusi optik/Optical illusion
koklea (c) Otak tidak dapat mentafsir dengan
E Bintik kuning/Yellow spot tepat apa yang sebenarnya dilihat oleh
Transfer sound vibration to the cochlea
F Bintik buta/Blind spot (vi) Mengawal keseimbangan badan mata

G Saraf optik/Optic nerve Controls body balance The brain is unable to interpret accurately what
(vii) Menukar gelombang bunyi kepada
H Gelemaca/Vitreous humor impuls saraf is actually seen by the eyes

I Otot silium/Ciliary muscle Converts sound waves to nerve impulses 11 (b) Bintik buta boleh dialami oleh sesiapa
(ix) Menghantar impuls saraf ke otak sahaja
Blind spot can be experienced by anyone
J Iris/Iris Send nerve impulses to the brain (c) Suatu objek tidak dapat dilihat apabila
(c) (i) Salur telinga/Ear canal
K Gelemair/Aqueous humor imejnya jatuh pada bintik buta
(ii) Gegendang telinga/Eardrum
L Anak mata/Pupil (iii) Menguatkan getaran sebelum An object cannot be seen when its image falls

M Kornea/Cornea menghantarnya ke jendela bujur on the blind spot
Amplify vibrations before sending it to
N Konjunktiva/Conjunctiva the oval window (e) Fotoreseptor tidak terdapat pada bintik
buta
(iv) Memindahkan getaran bunyi dari There are no light receptors on the blind
(b) (i) Melindungi kornea osikel ke koklea
Protects the cornea spot
Transfer sound vibrations from the
ossicles to the cochlea

© Global Mediastreet Sdn. Bhd. (762284-U) J1

SAINS DAN APLIKASI HARIAN (e) (i) Sentuhan/Touch The image of vehicle R falls on the blind spot
Kenderaan besar seperti bas mempunyai zon (ii) Daun/Leaves
titik buta yang luas. Zon ini berada di sebelah (iii) Tumbuhan mendapat makanan of the lorry driver. The photoreceptors are not
kiri, kanan dan belakang bas. Kenderaan lain
yang berada di dalam zon ini tidak dapat dilihat dan sebagai perlindungan daripada present in the blind spot, therefore the image of
oleh pemandu bas kerana imej kenderaan musuh
tersebut jatuh pada bintik buta pemandu bas. Plants get food and protection from vehicle R cannot be seen
Tanda amaran diletakkan untuk mengingatkan enemies (b) Melajukan kenderaan untuk berada di luar
pemandu lain supaya tidak berada di dalam 2 Pucuk menunjukkan/Shoots shows:
zon bintik buta bagi mengelakkan kemalangan (a) positif/positive kawasan bintik buta pemandu lori
berlaku (b) negatif/negative Speed up the vehicle to be outside of the blind spot
Large vehicles such as buses have wide blind spot (c) negatif/negative
zones. This zone is on the left, right and behind the bus. Akar menunjukkan/Root shows: area of the lorry driver
Other vehicles within this zone cannot be seen by the (a) negatif/negative
bus driver because the image of the vehicle falls on the (b) positif/positive SUDUT PISA/TIMSS
blind spot of the driver. The warning sign is placed to (c) positif/positive C
remind other drivers not to be in the blind spot zone to 3 (a) Fototropisme dan tigmotropisme
avoid accident Phototropism and thigmotropism PRAKTIS BAB 1
12 (a) (i) nipis/thin (b) Tumbuh-tumbuhan ini mempunyai
ciri-ciri seperti daun yang lebar dan 1 (a) Jatuh basikal 3
(ii) pendek/short boleh memanjat untuk memperoleh Fall off a bicycle
(iii) Cembung/Convex cahaya Matahari yang mencukupi
(b) (i) tebal/thick These plants have features such as wide Menerima suntikan 3
(ii) panjang/long leaves and can climb to obtain sufficient Receiving injection
(iii) Cekung/Concave
(c) (i) tidak sekata/Uneven Sunlight (b) (i) Mempunyai banyak reseptor
(ii) Silinder/Cylindrical (c) Akar yang besar memberi sokongan Has many receptors
13 (a) yang lebih kuat kepada pokok tinggi (ii) Lapisan epidermis nipis
A large root gives stronger support to tall Thin layer of epidermis
(b) trees 2 (a) (i) Fototropisme/Phototropism
(ii) P: Tumbuh ke arah lubang
14 (a) Terdedah kepada bunyi yang kuat
dalam jangka masa yang lama Grows towards the hole

Exposed to loud sound over long periods of Q: Tumbuh tegak ke atas
time
Grows upright
(b) Melalui alat bantu pendengaran atau
pembedahan ss ss (iii) Cahaya hanya dapat menembusi
kotak kadbod melalui lubang
Through hearing aids or surgeryss 1.4 manakala cahaya boleh
ss 1 (a) (i) stereoskopik/Stereoscopic menembusi keseluruhan kotak kaca
AKTIVITI PAK-21 The light can only penetrate the
Jawapan murid/Student’s answers (ii) hadapan/in front
15 (a) Melihat objek yang sangat jauh (iii) Sempit/Narrow; cardboard box through the hole while
To see very far objects bertindih/overlapping
(b) Mendengar bunyi dengupan jantung (iv) menganggar jarak objek dengan the light can penetrate the entire glass
To hear heartbeat sound tepat
(c) Melihat mikroorganisma yang seni estimate the distance of the object box
To see the fine microorganisms
(d) Melihat objek di sebalik halangan accurately (b) K melilit pada struktur sokongan untuk
To see objects behind obstacle (v) pemangsa memburu mangsa membolehkan tumbuhan tumbuh lebih
(e) Melihat perkembangan foetus di dalam tinggi lalu daun mendapat lebih
predators to hunt prey banyak cahaya Matahari untuk
uterus (b) (i) monokular/Monocular menjalankan fotosintesis
To evaluate foetal development in the uterus (ii) sisi/side K twirls around the support structure to let
(f) Mengambil gambar tisu atau organ (iii) Luas/Wide;
To take pictures of tissues or organs the plant grow higher thus the leaves obtain
1.3 tidak bertindih/not overlap
1 (a) (i) Cahaya/Light (iv) mengesan pemangsa dari pelbagai more sunlight for photosynthesis

(ii) Pucuk/Shoots arah BAB 2
(iii) Tumbuhan mendapat cahaya yang detect predators from multiple
mencukupi untuk fotosintesis 2.1
Plants get enough light for directions 1 (a) Rongga hidung/Nasal cavity
photosynthesis (v) mangsa melarikan diri daripada
(b) (i) Air/Water pemangsa (b) Bronkus/Bronchus
(ii) Akar/Roots prey to escape from predators (c) Bronkiol/Bronchioles
(iii) Tumbuhan mendapat garam (d) Diafragma/Diaphragm
mineral dan air untuk fotosintesis 2 Jenis penglihatan haiwan (e) Trakea/Trachea
Plants get mineral water for Animal type of vision (f) Tulang rusuk/Ribs
photosynthesis (g) Otot interkosta/Intercostal muscles
(c) (i) Graviti/Gravity Monokular Stereoskopik (h) Peparu/Lung
(ii) Akar/Roots Monocular Stereoscopic (i) Alveolus/Alveolus
(iii) Tumbuhan dapat mencengkam (j) Kapilari darah/Blood capillaries
tanah untuk sokongan Tikus/ Rats Burung hantu/ Owls 2 Menarik nafas/Inhalation
Plants can grasp the soil for support Rusa/ Deers Singa/ Lions (a) Hidung ➝ Trakea ➝ Bronkus ➝
(d) (i) Sentuhan/Touch Bronkiol ➝ Alveolus
(ii) Sulur paut/Tendrils Kambing/ Goats Monyet/ Monkeys Nose ➝ Trachea ➝ Bronchus ➝ Bronchiole
(iii) Tumbuhan mendapat sokongan Harimau/ Tigers ➝ Alveolus
Plants get support Arnab/ Rabbits (b) Mengecut dan mendatar
Contract and flattens
3 kedua-dua belah telinga/both ears; arah/ (c) – Otot interkosta dalam mengendur
direction; lebih dekat/closer; lebih awal/ Internal intercostal muscles relaxes
earlier; lebih kuat/stronger
– Otot interkosta luar mengecut
4 (a) Kala jengking/Scorpion External intercostal muscles contracts
(b) Ikan keli/Catfish (d) Bergerak ke atas dan keluar
(c) Ular/Snake Moves up and outwards
(d) Jerung/Shark (e) – Isi padu bertambah/Volume increases
(e) Cengkerik/Cricket
– Tekanan berkurang
AKTIVITI PAK-21 Pressure decreases
Jawapan murid/Student’s answers
Menghembus nafas/Exhalation
SUDUT KBAT (a) Alveolus ➝ Bronkiol ➝ Bronkus
(a) Imej kenderaan R jatuh pada bintik buta ➝ Trakea ➝ Hidung
Alveolus ➝ Bronchiole ➝ Bronchus
pemandu lori. Fotoreseptor tidak terdapat ➝ Trachea ➝ Nose
pada bintik buta, maka imej kenderaan R (b) Mengendur dan melangkung ke atas
tidak dapat dilihat
Relaxes and curves upwards

© Global Mediastreet Sdn. Bhd. (762284-U) J2

(c) – Otot interkosta dalam mengecut theophylline. Bahan kimia ini akan membuka 2.5
laluan uadar dalam peparu lalu meredakan 1 (a) stoma/stoma
Inner intercostal muscles contracts sesak nafas (b) lebih tinggi/higher; meresap/diffuses;
– Otot interkosta luar mengendur Asthma is a respiratory disease that occurs due to the
narrowing bronchi and production of mucus causing terbuka/opening
External intercostal muscles relaxes difficulties in breathing. The asthmatic student can (c) lentisel/lenticel
(d) Bergerak ke bawah dan ke dalam give coffee drink to ease her breathing difficulties. (d) lentisel/lenticel; longgar/ loosely
Moves down and inwards Coffee contains caffeine which is a drug that acts 2 (a) Kesan/Effect
(e) – Isi padu berkurang similarly as a chemical called theophylline. This
Volume decreases chemical substance opens airways in the lungs thus Jerebu mengurangkan keamatan cahaya
relieves breathlessness yang diterima oleh tumbuhan
– Tekanan bertambah menyebabkan kadar fotosintesis
Pressure increases menurun
Haze reduces light intensity received by
2.2 2 Karbon dioksida 3 plants causing the rate of photosynthesis to
1 (a) 1 resapan ringkas/simple diffusion Carbon dioxide
2 lebih tinggi/higher decrease
3 oksihemoglobin/oxyhaemoglobin Karbon monoksida 3 Cara mencegah/Way to prevent
(b) 1 Oksihemoglobin/Oxyhaemoglobin; Carbon monoxide Menghalang pembakaran terbuka
Prevent open burning
pengoksidaan/oxidation Sulfur dioksida 3 (b) Sulfur dioksida dan nitrogen oksida yang
2 (i) pengoksidaan/oxidation; Sulphur dioxide
tenaga/energy; larut dalam air hujan membentuk hujan
wap air/water vapour; asid lalu menyebabkan tumbuhan mati
karbon dioksida/carbon dioxide 3 Perokok pasif ialah individu yang tidak Sulphur dioxide and nitrogen dioxide that
merokok tetapi kerap menyedut asap
(ii) lebih tinggi/higher rokok yang dikeluarkan oleh perokok di dissolve in the rainwater form acid rain thus
3 (i) sel badan/body cells sekelilingnya serta menghadapi risiko yang
sama untuk menghidap penyakit respirasi killing plants
(ii) peparu/lungs Cara mencegah/Way to prevent
2 Pengaliran darah yang perlahan A non-smoker is an individual who often inhales Memasang penapis pada cerobong kilang
cigarette smoke from smokers near him and facing Install the filter on the factory chimney
membolehkan lebih banyak masa bagi
oksigen dilepaskan daripada sel-sel darah
the same risk of respiratory diseases

merah ke dalam sel-sel badan. Pada masa 2.4 SUDUT KBAT
yang sama, bahan buangan boleh meresap 1 (a) (i) kantung udara/air sacs Hasil tanaman kelapa sawit akan berkurang.
daripada sel-sel badan ke dalam darah Apabila asap dan debu memenuhi ruang udara
Slow blood flow allows more time for oxygen to (ii) nipis/thin; lembap/damp di ladang kelapa sawit atau meliputi permukaan
be released from the red blood cells into the body (iii) trakeol/tracheole daun pokok kelapa sawit, keamatan cahaya
cells. At the same time, waste products can diffuse 1 Trakeol/Tracheal yang diterima oleh daun akan berkurang. Ini
from the body cells into the blood 2 Kantung udara/Air sac menyebabkan kadar fotosintesis menurun dan
3 – Diliputi jaringan kapilari darah 3 Spirakel/Spiracle menjejaskan penghasilan buah kelapa sawit
Covered with network of blood capillaries (b) (i) nipis/thin Oil palm yields will be reduced. When smoke and
– Permukaan yang lembap/Moist surface (ii) lembap/damp; dust fill the airspace in the oil palm plantation or
– Luas permukaan besar/Large surface area kelenjar lendir/mucus gland cover the surface of oil palm leaves, the light intensity
– Dinding yang nipis/thin wall (iii) kapilari darah/blood capillaries received by the leaves will reduced. This led to the
1 Peparu/Lungs rate of photosynthesis decreasing and affecting the
SAINS DAN APLIKASI HARIAN 2 Kulit/Skin production of oil palm fruit

Peningkatan kadar pernafasan yang semakin (c) (i) air/water SUDUT PISA/TIMSS
mendalam semasa berlari membolehkan lebih
(ii) unjuran filamen/filament projections; 3 Dia tidak mengalami kesukaran untuk
banyak oksigen melarut dalam darah dan lamela/lamella; bernafas
dibekalkan kepada otot yang aktif. Karbon luas permukaan/surface area
dioksida berlebihan dalam darah dikesan oleh (iii) kapilari darah/blood capillaries; He does not experience diffilculty in

otak, yang mengarahkan otot interkosta dan oksigen/oxygen; breathing

diafragma untuk mengecut dan mengendur karbon dioksida/carbon dioxide Untuk tarikan dan hembusan nafas, tekanan
dengan lebih cepat, lalu meningkatkan kadar 1 Filamen/Filament udara di dalam rongga toraks mestilah lebih
pernafasan. Karbon dioksida akan dikeluarkan 2 (a) Benar/True rendah atau lebih tinggi daripada tekanan
dengan pernafasan yang lebih cepat dan (b) Palsu/False atmosfera. Jika terdapat lubang pada dada,
dalam tekanan udara di dalam rongga toraks akan
The increase rate and depth of breathing during (c) Palsu/False manjadi sama dengan tekanan atmosfera.
running allows more oxygen to dissolve in the 3 (a) X: Anemia/Anaemia Maka, pesakit akan sukar untuk bernafas
blood and then supplied to the active muscles. In order to inhale or exhale, air pressure inside the
Excess carbon dioxide in the blood is detected by Y: Anemia sel sabit/Sickle-cell anaemia thoracic cavity must be lower or higher than the
the brain, which instructs the intercostal muscles (b) Cepat berasa letih apabila melakukan atmospheric pressure. If there is a hole in the chest, the
and diaphragm to contract and relax more rapidly, air pressure inside the thoracic cavity will be equal to
increasing the breathing rate. Carbon dioxide will be sesuatu aktiviti the atmospheric pressure. Thus, the patient is having
Quickly tired when doing an activity difficulty to breathe
(c) Salur darah pada organ yang kurang

removed by faster and deep breathing penting akan ditutup supaya darah

2.3 dialihkan ke organ utama lain. Jantung PRAKTIS BAB 2
1 – Nitrogen dioksida/Nitrogen dioxide akan mengepam darah dengan lebih
Karbon monoksida/Carbon monoxide laju bagi memastikan organ-organ 1 (a) X: Oksigen/Oxygen
– Jerebu/Haze penting mendapat bekalan oksigen Y: Karbon dioksida/Carbon dioxide
– Sulfur dioksida/Sulphur dioxide Blood vessels in less important organs will
– Debu/Dust be closed so blood is transferred to another (b) Resapan/Diffusion
– Tar/Tar (c) Terdapat perbezaan kepekatan oksigen
– Debunga/Pollens major organ. The heart will pump blood more
dan karbon dioksida antara alveolus dan
quickly to ensure that important organs get kapilari darah
There is a difference in oxygen and carbon
oxygen supply dioxide concentration between alveolus and
blood capillaries
AKTIVITI PAK-21 AKTIVITI PAK-21 (d) Oksigenbergabungdenganhemoglobin
Jawapan murid/Student’s answer Jawapan murid/Student’s answer dalamseldarahmerahuntukmembentuk
oksihemoglobin. Kemudian, darah
SAINS DAN APLIKASI HARIAN 4 – Tidak merokok/Do not smoke mengalir ke jantung untuk dipam ke
Asma ialah penyakit respirasi yang berlaku – Minum banyak air/Drinks a lot of water bahagian badan yang memerlukan
akibat penyempitan bronkus dan penghasilan – Manjauhi perokok untuk mengelakkan oksigen
mukus yang menyebabkan kesukaran untuk Oxygen combines with haemoglobin in red
bernafas. Murid yang mengalami asma itu menjadi perokok pasif blood cells to form oxyhaemoglobin. Then,
boleh diberi minuman kopi untuk meredakan Stay away from smokers to avoid being blood flows to the heart where it is pumped to
kesukaran bernafas. Kopi mengandungi kafein parts of the body that require oxygen
yang merupakan sejenis dadah yang bertindak passive smokers
– Bersenam sekurang-kurangnya tiga kali
seminggu
seperti sejenis bahan kimia yang dipanggil Exercise at least three times a week

© Global Mediastreet Sdn. Bhd. (762284-U) J3

BAB 3 The circulatory system of animal Y is more Pulse rate is produced by the
efficient because its oxygenated blood is
contraction and relaxation of the

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(i) Y
(ii) X (ii) P : 95 denyutan/ minit
(iii) Y
(iv) X 95 beats/minute
Untuk membenarkan aliran darah
dalam satu arah sahaja Q: 70 denyutan/minit
To allow the flow of blood in one direction 70 beats/ minute
R: 80 denyutan/minit
only 80 beats/minute
(i) Vena kava/Vena cava (b) P, R, Q
(ii) Injap trikuspid/Tricuspid valve (c) Semakin kecil jantung, semakin kurang
(iii) Paru-paru/Lungs kuantiti darah yang dipam. Oleh itu,
(iv) Injap sabit/Semilunar valve jantung yang lebih kecil akan
(v) Vena pulmonari/Pulmonary vein mengepam darah pada kadar yang lebih
(vi) Injap bikuspid/Bicuspid valve cepat. Oleh itu, kadar denyutan nadi
(vii) Injap sabit/Semilunar valve kanak-kanak P adalah paling tinggi.
(viii) Aorta/Aorta Manakala denyutan nadi lelaki dewasa
(i) Arteri/Artery Q adalah paling rendah
(ii) Kapilari/Capillaries The smaller the heart, the lesser is the
(iii) Vena/Vein
Membenarkan pertukaran gas, makanan quantity of blood pumped. So, a smaller heart
dan bahan kumuh antara darah dengan
sel-sel tisu di sekitarnya melalui resapan has to pump in faster rate. Therefore, the
Enable the exchange of gases, food and
pulse rate of child P is the highest whereas
excretory products between the blood and
the pulse rate of adult male is the lowest
neighbouring cell tissues through diffusion
(i) Vena/Vein (d) Kadar denyutan nadi rehatnya akan
(ii) Kapilari/Capillary berkurang
His resting pulse rate will have decreased
(e) – Jenis aktiviti yang dilakukan
Type of activity done
– Jantina/Gender
– Kesihatan badan/Health
– Umur/Age
3.2 (iii) Arteri/Artery
1 (a) 3 (b) (i) Darah terdeoksigen AKTIVITI PAK-21
Deoxygenated blood Jawapan murid/Student’s answer
(b) 7 (ii) Campuran darah terdeoksigen
(c) 3 dan darah beroksigen 3.3
(d) 3 Mixture of deoxygenated blood and 1 (a) (i) Plasma/Plasma
2 (a) M ialah jantung. Jantung mempunyai
satu atrium dan satu ventrikel oxygenated blood (ii) Sel darah putih dan platlet
M is a heart. It has one atrium and one (c) (i) P mempunyai injap manakala R White blood cells

ventricle tidak mempunyai injap (iii) Sel darah merah/Red blood cells
(b) P has a valve whereas R does not have (b) (i) 3

a valve (ii) 7
(iii) 3
(ii) Saiz lumen P adalah lebih besar (iv) 3
berbanding saiz lumen R 2 (a) (i) Sel darah merah/Red blood cells
Lumen size in P is much larger
(c) Sekali/Once compared to that in R (ii) Platlet/Platelets
(d) Semasa darah mengalir melalui kapilari (iii) Sel darah putih/ White blood cell
(d) Pengaliran darah adalah cepat pada (b) − P
pada bahagian insang ikan, oksigen tekanan darah yang tinggi. Denyutan (i) Berbentuk cakera dwicengkung
diserap masuk ke dalam sel darah. nadi dapat dikesan Shaped like a biconcave disc
Pada masa yang sama, karbon dioksida (ii) Sederhana/Medium size
dalam sel darah disingkirkan keluar dari The blood flow is quick at high blood (iii) Tiada/None
kapilari (iv) Mengangkut oksigen
As blood flows through the capillaries in the pressure. Pulse can be detected Transport oxygen
7 (a) Darah mengalir melalui jantung dua − Q
fish gills, oxygen is diffused into the blood (i) Berbentuk tidak sekata
kali dalam satu peredaran lengkap Shaped irregularly
cells. At the same time, carbon dioxide in Blood flows through the heart twice in one (ii) Lebih besar daripada P
Larger than P
the blood cells is eliminated out of the complete circulation (iii) Ada/Yes
(b) (i) Sistem peredaran pulmonari (iv) Melawan jangkitan penyakit
capillaries Pulmonary circulatory system Fight against infections
3 (a) Kedua-dua sistem merupakan sistem − R
(ii) Sistem peredaran sistemik (i) Serpihan sel yang pecah
peredaran tertutup/Darah mengalir Systemic circulatory system berbentuk tidak sekata
dalam salur darah secara berterusan (c) Masa untuk satu peredaran lengkap Fragments of cells shaped irregularly
melalui jantung ke seluruh badan dan bertambah singkat dalam kedua-dua
kembali ke jantung sistem (ii) Sangat kecil/Very small
Both systems are closed circulatory systems/ The time for a complete circulation shortens (iii) Tiada/None
Blood flows in the blood vessels continuously (iv) Membantu pembekuan darah
in both systems Helps in blood coagulation
through the heart to the entire body and (d) Sistem-sistem peredaran perlu bekerja 3 (a) (i) Antigen/Antigen A
(ii) Antigen/Antigen B
returns to the heart dengan lebih pantas untuk menghantar (iii) Antigen/Antigens A + B
(b) (i) Jantung haiwan X tiada sternum oksigen dan bahan keperluan lain ke (iv) Tiada A atau B/Neither A or B
sel-sel badan untuk menjana lebih (b) (i) Tiada antibodi/No antibodies
tetapi jantung haiwan Y banyak tenaga bagi aktiviti menaiki (ii) Antibodi anti-A dan anti-B
mempunyai sternum tangga Anti-A and anti-B antibodies
The heart of animal X does not have The circulatory systems need to work faster to (c) Antibodi anti-B akan bergabung dengan
antigen B, menyebabkan penggumpalan
a sternum but the heart of animal Y send oxygen and other necessary substances (aglutinasi) sel darah merah yang boleh
membawa maut
has to body cells to generate more energy for the
(ii) Jantung haiwan X mempunyai 3
activity of climbing stairs
ruang manakala jantung haiwan Y 8 (a) Alat sfigmomanometer
mempunyai 4 ruang A sphygmomanometer device
The heart of animal X has 3 chambers
whereas the heart of animal Y has 4

chambers (b) 110/60 mm Hg X
(c) Sistem peredaran haiwan Y lebih
9 (a) (i) Denyutan nadi dihasilkan oleh
cekap kerana darah beroksigen pengecutan dan pengenduran
dipisahkan sepenuhnya daripada darah dinding arteri yang berotot
terdeoksigen

© Global Mediastreet Sdn. Bhd. (762284-U) J4

Anti-B antibodies will bind together with B Structure M allows transpiration to be (e) air/water; nutrien/nutrients
carried out (f) xilem/xylem; floem/phloems
antigens, causing agglutination of red blood (c) (i) 3 (g) berterusan/continuous
(ii) 3 (h) berterusan/continuously
cells which can be deadly (d) P, S, R, Q (i) xilem/xylem; floem/phloems
(e) Keadaan P, Q, R dan S menunjukkan
4 Kumpulan Darah SUDUT KBAT
Kumpulan Darah Penerima keamatan cahaya yang berlainan. Floem yang berfungsi untuk mengangkut
Penderma Recipient’s Saiz struktur M paling besar apabila sukrosa berada pada permukaan bawah
Donor’s Blood keamatan cahaya paling tinggi ketika Q daun. Manakala xilem berada berada pada
Blood Group untuk membolehkan proses fotosintesis permukaan atas daun. Oleh itu, afid berkumpul
Group A B AB O dijalankan. Sebaliknya, struktur M pada permukaan bawah daun untuk menghisap
tertutup dalam keadaaan gelap-gelita cecair yang ada pada bahagian daun.
A 37 3 7 semasa P apabila fotosintesis tidak The phloem which transports sucrose is located on the
dijalankan lower leaf surface. While the xylem is located on the
B 73 3 7 Condition of P, Q, R and S shows different upper leaf surface. Therefore, aphids converge on the
light intensity. Size of structure M is bigger lower leaf surface to suck the sap in the leaf.
AB 7 7 3 7 when light intensity is the highest during Q
to enable photosynthesis to be carried out. SUDUT PISA/TIMSS
O 33 3 3 On the other hand, structure M is closed in (a) Cara duduknya menghadkan edaran
complete darkness during P when there is no
(a) Kumpulan darah O kerana ia boleh photosynthesis darah ke bahagian kakinya. Keadaan ini
menderma kepada semua kumpulan 5 – Kelembapan udara/Humidity telah menyebabkan rasa kebas
darah – Pergerakan udara/Air movement Her sitting position restricted the flow of
– Suhu/Temperature blood into her legs. This situation caused the
Blood group O because it can donate to all – Keamatan cahaya/Light intensity numbness in her legs
6 (a) Untuk mengkaji kesan kelembapan (b) (ii) Ubah cara duduk selepas seketika
blood groups udara ke atas kadar transpirasi Change sitting position after sometime
(b) Kumpulan darah AB kerana ia boleh To study the effect of humidity on transpiration
rate. PRAKTIS BAB 3
menerima daripada semua kumpulan (b) Minyak digunakan untuk mencegah 1 (a) Bermula dari hujung batang hingga ke
darah penyejatan air melalui permukaan air
Blood group AB because it can receive from dalam kelalang kon pucuk, saderi (sebelah kiri) bertukar
Oil is used to prevent water evaporation menjadi biru manakala saderi (sebelah
all blood groups from the water surface in the conical flask kanan) bertukar menjadi merah
(c) Kehilangan jisim adalah melebihi 95 g Starting from the ends to the shoots, the
AKTIVITI STEM Mass loss is more than 95 g celery (on the left) turns blue whereas the
(d) Kelembapan udara pada Q adalah lebih celery (on the right) turns red
(a) Kedua-dua lututnya mempunyai tanda- rendah daripada kelembapan udara (b) Air berwarna diserap dari hujung
tanda hitam-kebiruan pada P kerana kalsium klorida kontang batang dan diangkut melalui salur xilem
pada Q telah menyerap semua wap air sehingga ke pucuk saderi
There are bluish black marks on both his dalam udara dalam beg plastik. Oleh Coloured water is absorbed from the ends
knees itu, kadar transpirasi lebih tinggi untuk and transported through the xylems until it
Q, maka kehilangan air juga adalah reaches the shoots
(b) Oleh kerana tiada luka, tiada pendarahan lebih tinggi. (c) Ulang eksperimen di luar makmal
luaran berlaku. Namun, kapilari di Humidity for Q is lower than the humidity for (di bawah sinaran Matahari)
bawah permukaan kulit telah tercedera P because the anhydrous calcium chloride in Repeat the experiment outside the laboratory
dan menyebabkan pendarahan. Platlet Q have absorbed all water vapour in the air (under the Sun)
telah berkumpul di tapak luka untuk in the plastic bag. Therefore, the transpiration (d) Kadar transpirasi meningkat apabila
membentuk bekuan darah. Ini rate is higher for Q, thus the water loss would suhu dan keamatan cahaya meningkat.
menyebabkan kulit kelihatan lebam be higher. Oleh itu, air berwarna akan lebih cepat
7 (a) diserap masuk
As there is no wound, there is no external The rate of transpiration increases when the
Bengkak temperature and light intensity increase. So,
bleeding occur. However, the capillaries Swollen the coloured water will be absorbed more
quickly
underneath the skin are injured and caused

bleeding. Platelets have gathered at the wound

area. This is the reason why the skin looks

bluish black
(c) Jawapan murid/Student’s answer

3.4
1 (a) Transpirasi/Transpiration;
wap air/water vapour;
penyejatan/evaporation

(b) Gutasi/Guttation;
cecair/liquid;
hidatod/hydathodes

(c) Hidatod/hydathode
2 (a)

Arah gerakan air (b) Oleh kerana sebahagian daripada BAB 4
Direction of water flow floem telah dibuang, makanan tersekat
(b) (i) tersejat/evaporates; dan terkumpul di dalam floem pada 4.1
permukaan/surface; bahagian atas gegelang menyebabkan 1 (a) sebatian/compound; kerak/crust
stoma/stomata bahagian tersebut bengkak
(ii) naik/up; daun/leaves (b) larut/dissolve
(iii) tanah/soil; akar/root Because part of the phloem has been removed, 2 (a) Emas/Gold
(c) Pokok menjadi layu/The plant wilts food substances are stuck and accumulate in
3 − Transpirasi/Transpiration the phloem above the cutting region causing (b) Perak/Silver
(a) stoma/stoma swelling in that region (c) Platinum/Platinum
(b) siang/daytime (d) Bauksit/Bauksit
(c) wap air/water vapour (c) Pokok masih hidup kerana xilem (e) Sulfida logam/Metal sulphide
− Gutasi/Guttation tidak dibuang. Oleh itu, xilem masih (f) Hematit/Hematite
(a) hidatod/hydathodes terus mengangkut air dan garam galian 3 (a) Plumbum/Lead; Sulfur/Sulphur
(b) malam/night terlarut dari akar ke bahagian lain (b) Kuprum/Lead; Oksigen/Oxygen;
(c) cecair/liquid pokok Karbon/Carbon
4 (a) Liang stoma/Stomata pore (c) Timah/Tin; Oksigen/Oxygen
(b) Struktur M membenarkan transpirasi The tree is still alive because the xylems have (d) Aluminium/Aluminium; Silikon/Silicon;
berlaku not been removed. So, xylems continue to Oksigen/Oxygen
transport water and dissolved minerals from 4 (a) (iv)
the roots the other parts of the tree (b) (i)
(c) (iii)
3.5 (d) (ii)
1 (a) jantung/heart; injap/valves
AKTIVITI PAK-21
(b) kompleks/complex Jawapan murid/Student’s answer
(c) tanpa/without
(d) arteri/artery; kapilari/capillary dan/and
vena/vein

© Global Mediastreet Sdn. Bhd. (762284-U) J5

4.2 (b) 3 (a) Tenaga
1 Natrium, Magnesium, Zink, Ferum, Stanum, 60 Energy

Plumbum, Kuprum, Argentum 50 Logam T Hasil tindak balas
Sodium, Magnesium, Zinc, Iron, Tin, Lead, Copper, 40 Metal T Products

Silver 30Isi padu gas/cm3 Zink Bahan tindak balas
2 (b) 3 Volume of gas/cm3 Zinc Reactant

(d) 3 20 (b) Tenaga
(e) 3 Energy
3 (a) Untuk membekalkan gas oksigen
To supply oxygen gas 10 Bahan tindak balas
(b) Ia akan membakar dengan nyalaan Reactant
putih berkilau yang terang Masa/minit
It will burn with white sparkle glow 0 1234567 8 Time/minute
(c) Magnesium mempunyai kereaktifan
yang tinggi terhadap oksigen (c) Isi padu gas bertambah dengan masa Hasil tindak balas
Magnesium has high reactivity towards tindak balas Products
oxygen The volume of gas increases with the time of
(d) Letupan akan berlaku 4 (a) Fotosintesis/Photosynthesis
Explosion will occur reaction (b) Tindak balas endotermik

4.3 (d) Logam T lebih reaktif berbanding Endothermic reaction
1 (a) Bahan/Material X: dengan zink kerana kadar tindak (c) Proses ini menyerap tenaga cahaya dari
Bijih besi/Iron ore balasnya lebih tinggi daripada zink
persekitaran
Bahan/Material Y: Metal T is more reactive than zinc snce the This process absorbs light energy from the
Batu kapur/Lime stone
(b) Sebagai agen penurunan rate of reaction is higher than zinc surrounding
As reducing agent 5 (a) Haba diserap dari persekitaran
(c) (i) karbon/carbon 2 (a) Sangat bersetuju. Lombong-lombong Heat absorb from surroundings
dibuka dan melibatkan kawasan yang
(ii) karbon dioksida/carbon dioxide luas. Flora dan fauna termusnah. (b) Haba dibebaskan ke persekitaran
(iii) Kalsium silikat/Calcium silicate Haiwan kehilangan habitat. Keadaan ini Heat release to surroundings
2 (a) Pencemaran udara/Air pollution akan mempengaruhi siratan makanan
(b) Hakisan tanah/ Soil erosion dan rantai makanan lalu menjejaskan (c) Melibatkan perubahan tenaga
(c) Pencemaran bunyi/Sound pollution ekosistem. Involve energy change
(d) Pemusnahan habitat Totally agree. Opening of the mine involves
Destruction of habitat (d) Suhu persekitaran menurun
(e) Pencemaran air/Water pollution large area. Flora and fauna will be destroyed. Surrounding temperature decrease

SUDUT KBAT Animals will be losing their habitat. This (e) Suhu persekitaran meningkat
Ini menunjukkan bahawa zink oksida bertindak Surrounding temperature increase
balas dengan karbon dan membebaskan gas situation will affect the food web and food 6 Suhu ais akan bertambah sementara
karbon dioksida apabila dipanaskan manakala
tiada tindak balas antara aluminium oksida chain and thus affecting the ecosystem. menurunkan suhu air. Secara perlahan-
dengan karbon semasa pemanasan. Karbon (b) − Penanaman semula pokok di tapak lahan, jumlah haba yang dihilangkan oleh
boleh menyingkirkan oksigen dalam zink perlombongan air akan dipindahkan kepada ais.
oksida manakala tidak dapat menyingkirkan Replanting trees at the mining area The temperature of the ice will increase thus
oksigen dalam aluminium oksida. Maka, − Menjadikan tapak-tapak decreasing the temperature of water. Evidently, the
karbon lebih reaktif daripada zink manakala perlombongan yang telah ditutup amount of heat lost by the hotter of water will be
kurang reaktif daripada aluminium. sebagai taman rekreasi given to the ice.
This shows that zinc oxide reacts with carbon and Make the closed mining area as
releasing carbon dioxide gas when heated while there AKTIVITI STEM
is no reaction between aluminium oxide and carbon recreational park (a) Alkohol sapu/Rubbing alcohol;
during heated. Carbon can eliminate oxygen in zinc − Mengadakan kempen dan Air suling/Distilled water
oxide while no elimination of oxygen in aluminium Pendidikan Alam Sekitar secara (b) 1 Sukat 600 ml air suling dan 20 ml
oxide. Therefore, carbon is more reactive than zinc berterusan kepada semua lapisan
while less reactive than aluminium. masyarakat tentang penjagaan alkohol sapu menggunakan silinder
alam sekitar penyukat secara berasingan
SUDUT PISA/TIMSS Conducting environmental campaigns Measure 600 ml of distilled water and 200 ml
− Mengkaji tindak balas logam dengan asid of alcohol separately by using a measuring
and Education continuously to all cylinder
cair. 2 Tuangkan alkohol sapu dan air suling
Study the reaction of metals with dilute acids levels of society on environmental care ke dalam beg plastik berzip dan kacau
− Logam di atas hidrogen dalam satu siri sehingga sebatian itu bercampur
BAB 5 Pour the rubbing alcohol and distilled water
kereaktifan akan bertindak balas dengan into a plastic bag with zipper and mix well the
asid cair untuk membebaskan gas hidrogen 5.1 compound
The metals above hydrogen in the Reactivity 1 (a) Tindak balas yang menyerap haba dari 3 Masukkan beg plastik berzip itu ke
Series can react with with dilute acids, giving dalam sebuah beg plastik berzip lain
off hydrogen gas. persekitaran untuk mengelakkan kebocoran
− Logam-logam di bawah hidrogen dalam satu Reaction that absorbs heat from Place the plastic bag with zipper into another
siri kereaktifan pulan tidak bertindak balas plastic bag with zipper to avoid leaking
dengan asid cair surroundings 4 Letakkan beg plastik itu dalam peti
Those metals below hydrogen in the Reactivity (b) Tindak balas yang membebaskan haba sejuk supaya ia menyejuk menjadi pek
Series do not react with dilute acids ke persekitaran sejuk
Reaction that release heat to surroundings Place the plastic bag into the freezer and it
PRAKTIS BAB 4 2 (a) Tindak balas eksotermik will freeze into cool pack
1 (a) (i) Hidrogen Exothermic reaction
Hydrogen (b) Tindak balas endotermik SUDUT KBAT
Endothermic reaction Ammonium klorida dan air suling. Suhu
(ii) Uji dengan kayu uji menyala dan (c) Tindak balas endotermik selepas tindak balas berkurang
bunyi “pop”akan kedengaran Endothermic reaction Ammonium chloride and distilled water. The
Test with a burning wooden splinter (d) Tindak balas endotermik temperature after the reaction decreases
and a “pop” sound is heard Endothermic reaction
(e) Tindak balas eksotermik SUDUT PISA/TIMSS
Exothermic reaction (a) A
(f) Tindak balas eksotermik (b) Semasa respirasi, glukosa dan oksigen
Exothermic reaction

© Global Mediastreet Sdn. Bhd. (762284-U) J6

digunakan untuk menghasilkan tenaga. (iii) Tidak boleh diubah AKTIVITI PAK-21
Karbon dioksida dan air dihasilkan Cannot be changed
manakala haba dibebaskan dalam tindak (iv) Voltan, V Jawapan murid/ Student’s answer
balas ini
During respiration, glucose and oxygen are Voltage, V 5 NN sp = Vp
used tp produce energy. Carbon dioxide and Vs
water are produced while heat is released in
this reaction N p = BNuilmanbegraonf gegelung primer
the primary coil
PRAKTIS BAB 5
1 (a) (i) Bahan tindak balas/Reactant Masa, s N s = BNuilmanbegraonf gegelung sekunder
Time, s the secondary coil
(ii) Hasil tindak balas/Product (b) (i) Dari generator/From generator
(b) (i) diserap/absorbed (ii) Berubah mengikut pemasangan Vp = Voltan input/Input voltage
litar Vs = Voltan output/Output voltage
(ii) haba/heat Changes according to connection of
2 (a) Tindak balas eksotermik 6 (a) (i) 1500 = 250 V
It is an exothermic reaction circuit NS 6V
(iii) Boleh dinaik dan diturunkan oleh
(b) (i) Merebus telur/Boiling egg NS = 36
(ii) Penyejatan air/ Evaporation of water transformer
Can be increased or reduced by (ii) Transformer injak turun
(c) (i) Sudu berasa panas. Tenaga haba Step-down transformer
daripada teh panas dipindahkan transformer (b) (i) B1
kepada sudu sehingga suhu kedua- (iv) Voltan, V (ii) Np Vp
dua bahan itu adalah sama/ Voltage, V Ns = Vs
keseimbangan terma tercapai
2000 = 12 V
The spoon felt hot. The heat energy 800 Vs
from the hot tea is transferred to the
spoon until the temperature of both Vs = 4.8 V
substances is the same/ the thermal 6.3
equilibrium is reached Masa, s
(ii) Keseimbangan terma Time, s

Thermal equilibrium 1 (a) 11 kV
6.2 (b) 132 kV
BAB 6 1 (a) (i) Stesen transformer
Transformer station
6.1 (c) 132 kV
1 (a) Hidro/Hydro (ii) Lapangan suis/Switch zone
(b) Ombak/Wave (d) 132 kV
(iii) Rangkaian Grid Nasional
(c) Petroleum/Petroleum National Grid Network
(d) Nuklear/Nuclear Mentol Sumber (e) 240 V
2 tidak boleh baharu/non-renewable Bulbs kuasa a.t (iv) Pencawang utama
3 (a) (i) Hidro/Hydro d.c power
supply Main substation
(ii) Ombak/Wave (f) 33 kV
(iii) Geoterma/Geothermal (v) Industri berat
(iv) Solar/Solar (b) Ubahsuaian/Modification: Heavy industry
(v) Angin/Wind Gantikan bateri dengan sumber kuasa
(b) Tenaga tidak boleh baharu (g) 11 kV
Non-renewable energy arus ulang-alik (vi) Pencawang bahagian
(i) Petroleum/Petroleum Replace the battery with an alternating
(ii) Gas asli/Natural gas Branch substation
(iii) Arang batu/Coal current power supply (h) 11 kV
(iv) Diesel/Diesel Sebab/Reason: (i) 415 kV atau/or 240 V
(v) Nuklear/Nuclear Transformer hanya berfungsi dengan (vii) Pencawang bahagian
4 (a) (i) tinggi/higher
(ii) kinetik/kinetic arus ulang-alik Branch substation
(iii) Turbin/turbine Transformers only functions on alternating (j) 415 kV
(b) (i) petroleum/petroleum; (k) 240 V
arang batu/coal current
(ii) stim/steam
(iii) turbin/turbine AKTIVITI PAK-21 2 (a) Wayar hidup/Live wire
(iv) elektrik/electric Jawapan murid/Student’s answer (b) Wayar neutral/Neutral wire
(c) (i) udara/air; angin/wind (c) Fius utama/Main fuse
(ii) menggerakkan/moves 2 P(P(( abaee)))rrbs aeGTAGmzeerearauggaaaseeasnllnuuub//lSnneDaismggniifg/ifpsleI-aerrraoreiklminniutkiccneee/osrdAs:r/:elPetr;er/riSmneaactoriynngdcaocriuly;rrc eonilt 3 ( ( (((afegd))))) Suis utama/Main switch
(iii) turbin/turbine Pemutus litar/Circuit breaker
(iv) elektrik/electric Wayar bumi/Earth wire
(d) (i) nuklear/nuclear; haba/heat Litar kuasa/Power circuit
(ii) haba/heat; stim/steam Mengawal pembekalan arus ke semua
(iii) turbin/turbine litar di rumah
(iv) elektrik/electric Controls the current supply to all circuits at
5 (a) Arus elektrik yang mengalir dalam satu
arah sahaja home
Electric current that flows in one direction
only (b) Memutuskan bekalan kuasa dari punca
(b) Arus elektrik yang arah alirannya utama
berubah-ubah secara berterusan
Electric current that its direction continuously Breaks the power supply from the main power
changes
6 (a) (i) Dari sel voltan/From voltage cell (b) (c) Memutuskan litar jika bekalan arus
(ii) Satu arah sahaja terlalu besar
One direction only Breaks circuit if the current supply is too big
4 (a) (ii) (iii)
(b) (i) (iv)
(c) lebih kecil/smaller 5 (a) (ii) (iii) (vi)
(d) lebih banyak/greater
(e) lebih rendah/lower (b) (i) (iv) (v)
(f) lebih tinggi/higher 6 (a) Wayar neutral/Neutral wire; Biru/Blue
(g) lebih besar/greater
(h) lebih kecil/smaller (b) Wayar bumi/Earth wire;
4 (a) Transformer injak naik Jalur hijau dan kuning
Step-up transformer Green and yellow stripes
(b) Transformer injak turun
Step-down transformer (c) Wayar hidup/Live wire;
Perang/Brown

(d) Fius/Fuse

© Global Mediastreet Sdn. Bhd. (762284-U) J7

SAINS DAN APLIKASI HARIAN (b) Tenaga elektrik/ Electric energy 3 (a) Kuasa/Power = 10 N × 3.6 m
= kuapsaoweelerktrik masa 4s
Alat itu dapat berfungsi kerana wayar yang × time
tidak bersambung adalah wayar bumi. Fungsi =9W
wayar bumi ialah membawa arus yang bocor = 1200 W × 2 jam/ hr
terus ke bumi lalu kejutan elektrik dapat = 2400 Wj (b) Kuasa/Power = Kerja yang dilakukan, W
dielakkan. Ketiadaan sambungan wayar bumi Masa yang diambil, t
pada palam 3-pin menyebabkan alat elektrik itu = 2.4 kWj
kurang selamat untuk digunakan = 2.4 unit 165 W = (55 × 10) × 3
The appliance will function as the wire that is not x
connected is the earth wire. The function of the earth Kos penggunaan tenaga elektrik
wire to allow the overflow current to be earthed thus Cost of electricity used x = 1650
the electric shock can be prevented. The disconnection = 2.4 unit × 20 sen 165
of the earth wire in a 3-pin plug makes an electrical = 48 sen
appliance unsafe to use = 10 saat/second
4 (a) Beban dalam P adalah lebih besar
daripada beban dalam Q. Maka, kerja
SUDUT KBAT yang dilakukan oleh P adalah lebih
besar.
(a) Individu itu mungkin terkena kejutan
7 (a) wayar halus/thin wire; rendah/low elektrik The load in P is more than the load in Q.

(b) keselamatan/safety The individual may experience electric shock Therefore, the work done by P is more than Q.
(c) (i) Memutuskan litar elektrik (b) Air dapat mengkonduksi elektrik. Air
Breaks off the electric circuit (b) Kerja/Work done = (35 × 10) × 22
mungkin meresap masuk ke dalam suis = 7700 J
dan arus akan dikonduksikan oleh air
(ii) Mengalirkan arus daripada kepada tangan yang menyentuh suis itu. 7.2
peralatan terus ke Bumi Water can conduct electricity. Water may seep 1 (a) ketinggian/height; Bumi/Earth’s
into the switch and the current will be conducted
Conducts current directly from by the water to the hand that is in contact with (b) kenyal/elastic; dimampatkan/compresses;
the switch
appliance to the Earth diregang/stretched

8 (a) Fius katrij/Catridge fuse (c) dimampat/compressed; kenyal/elastic
(b) Fius wayar boleh ganti (d) kinetik/kinetic; bergerak/moving
SUDUT PISA/TIMSS 2 Tenaga keupayaan graviti = mgh
Replaceable wire fuse (a) Ya/Yes
9 (a) Kuasa Arus voltan (b) Tidak/No
Power = Current × voltage Gravitational potential energy

Arus/Current = 900 W PRAKTIS BAB 6 ( ) = 450 × 10 × 8
120 V 1000

= 36 J
Nilai fius/Rating of fuse = 10 A 1 (a) P: Boleh dibaharu/Renewable 3 Tenaga keupayaan graviti kotak P = mgh
(b) Kuasa Arus voltan Q: Tidak boleh dibaharu/Non-renewable
Power = Current × voltage Gravitational potential energy box P
(b) P. Tenaga daripada Matahari lebih
Arus/Current = 1 500 W mudah diperoleh, tidak habis selepas = 40 × 10 × 6
120 V digunakan, kurang kos berbanding Q = 2400 J
yang lebih mahal dan berbahaya kepada
Nilai fius/Rating of fuse = 13 A manusia
10 (a) wayar bumi/an earth wire Tenaga keupayaan graviti kotak Q = mgh
(b) fius/a fuse P. The Sun energy is easily obtained, does not Gravitational potential energy box Q
(c) kebocoran arus/current leakage = 25 × 10 × 14
replenish after use, less cost compared to Q = 3500 J

11 (a) Jangan membebankan punca kuasa which is costly and harmful to human Kotak Q mempunyai tenaga keupayaan
bekalan kuasa (c) Negara mereka sukar mendapatkan gravity yang lebih besar daripada kotak P
Box Q have the larger gravitational potential
Do not overload a power point tenaga alternative lain yang lebih murah
(b) Ganti wayar elektrik dengan segera Their country hardly obtain other alternative energy than box P.

Replace damaged electrical wire immediately energy which is cheaper ( ) ( )4 1
(c) Tidak membaiki peralatan elektrik jika 2

tiada kemahiran 2 (a) 3 Tenaga keupayaan kenyal = Fx
Elastic potential energy
3
Do not repair electrical appliances without = 1 × 40 × 8
2 100
qualification = 1.6 J
(d) Sentiasa memastikan penyambung dan ( )5 Tenaga keupayaan kenyal 1
(b) Kuasa = Arus × Voltan Elastic potential energy = 2 Fx
palam tidak longgar 0.54 = 1
2
Always ensure that the chords and plug are J × 180 × x

not loosen Power Current Voltage
(e) Tidak menarik wayar semasa
menanggalkan palam = 1200 W x = 0.54 × 2
Do not pull the wire when removing a plug 230 V 180
(f) Tidak menyentuh peralatan elektrik
= 5.2 A = 0.006 m
dengan tangan yang basah
Nilai fius/Fuse rating: 10 A = 0.6 cm

Do not touch electrical appliances with wet hand 6 2 km/j = 72 km
1 jam/ hour
BAB 7
AKTIVITI PAK-21 = 72000 m
Jawapan pelajar/Student’s answer 3600 s

6.4 7.1 = 20 m/s

1 (a) Peratus tenaga input yang diubah 1 (a) (ii) Tenaga kinetik/Kinetic energy
(b) (i)
kepada bentuk tenaga output yang (c) (iii) = 1 mv²
berfaedah 2
2 (a) Kerja/Work done = 960 J ( ) 1
The percentage of input energy that altered = 2 × 3000 × 20²
F × 8 = 960
into a beneficial output energy
(b) (ii) 3 F = 960 = 600000 J
8
(iii) 3 7 Tenaga kinetik Kok Poh = 1 mv²
2 (a) (i) Kuasa elektrik/Electric power = 120 N Kinetic enrgy of Kok Poh 2

= Voltan/Voltage × Arus/Current (b) Kerja/Work done = 1530 J ( )= 1 × 55 × 3.6²
2
= 110 V × 5.0 A 60 × d = 1530

= 550 W d = 1530 = 356.4 J
(ii) Tenaga elektrik/ Electric energy 60

= kuasa elektrik × masa d = 25.5 m Tenaga kinetik Thilaban = 1 mv²
power time Kinetic energy of Thilaban 2
(c) Kerja/Work done ( )=

= 550 W × 30 × 60 = Berat/Weight (N) × Jarak/Distance 1 × 70 × 2.5
2
= 990 000 J = (25 × 10) N × (110/100) m

= 990 kJ = 275 J = 218.75 J

© Global Mediastreet Sdn. Bhd. (762284-U) J8

Tenaga kinetik Kok Poh lebih besar PRAKTIS BAB 7 (b) Suatu atom klorin menerima satu
berbanding tenaga kinetik Thilaban elektron. Selepas itu, atom klorin itu
1 (a) Kerja ialah hasil darab daya dan sesaran mempunyai 17 proton dan 18 elektron.
The kinetic energy of Kok Poh is larger than the dalam arah daya. Bilangan elektron melebihi bilangan
kinetic energy of Thilaban Work is the product of force and the proton sebanyak 1. Maka, ion klorida
bercas −1.
7.3 displacement in the direction of force.
(b) Kerja/Work = Daya/Force × Jarak/Distance A chlorine atom receives an electron. After
1 Tenaga tidak boleh dicipta atau dimusnahkan 2250 = Daya/Force × 50 that, the chlorine atom has 17 protons and
tetapi boleh diubah daripada satu bentuk 18 electrons. The number of electrons exceeds
kepada bentuk yang lain. Daya/Force = 2250 the number of protons by 1. Therefore, the
50 chloride ion has a −1 charge.
Energy can neither be created nor destroyed but = 45 N
3 (a) P. Bilangan proton sama dengan
they can be changed from one form to another. Kerja/Work bilangan elektron.
Masa/Time P. number of protons is similar to the number
2 (a) Tenaga keupayaan graviti maksimum = 2 Ku asa/Power = of electrons.
Kehilangan tenaga kinetik
Maximum gravitational potential mgh (b) Q dan S. Bilangan proton melebihi
= 3 bilangan elektron.
energy = Loss of kinetic energy Q and S. The number of protons exceeds the
1 number of electrons.
= 1 mv² = 3 × (4 × 10 × 1.2)
2 (c) R dan T. Bilangan elektron melebihi
( ) ( ) 1 120 = 16 W bilangan proton.
= 2 × 1000 × 15² 3 (a) Tenaga keupayaan kenyal 1 R and T. The number of electrons exceeds the
Elastic potential energy = 2 F x number of protons.
= 13.5 J
1 ( ) ( ) 1 60 4 (a)
2 2 100
(b)
mgh = mv² = × 25 ×
( )( b)
10 × h = 1 × 15² = 0.75 J 1
2 2
h = 11.25 m (b) Te naga kine tik/Kinetic energy = mv²

3 Tenaga kinetik yang diperolehi = Tenaga ( ) ( ) 1 mv² = 0.75
keupayaan yang hilang 2
1 30
Kinetic energy gained = Potential energy lost 2 × 1000 × v² = 0.75
1
2 mv² = mgh v² = 50

v² = 2 gh v = 7.071 m/s
(c) Tiada kehilangan tenaga dalam sistem
= 2 × 10 × 8 No loss of energy in the system
v = √160
= 12.65 m/s
4 (a) Kehilangan tenaga keupayaan graviti
Loss in gravitational potential energy BAB 8
= mgh 8.3
= 8 × 10 × (25-10) 8.1 1 (a) Mengion/Ionizing
= 1200 J 1 (a) (ii)
(b) Tenaga kinetik yang diperoleh (b) Mengion/Ionizing
Kinetic energy gain (b) (i) (c) Tidak mengion/Non-ionizing
1 (c) (iii) (d) Mengion/Ionizing
= 2 mv² 2 pereputan/decay; nukleus/nucleus (e) Tidak mengion/Non-ionizing
3 (a) Sinaran alfa/Alpha radiation (f) Mengion/Ionizing
( ) = 1 × 8 × 15.5² (b) Sinaran beta/Beta radiation (g) Tidak mengion/Non-ionizing
2 (c) Sinaran gama/Gamma radiation 2 (b) (i) Sangat kecil/Very small
4 (a) 1 curie (Ci) (c) (i) Kuat/Strong
= 961 J (b) 1 bacquerel (Bq)
(c) Sebahagian tenaga digunakan untuk 5 bilangan/number; setengah/half (ii) Lemah/Weak
mengatasi geseran. Sebahagian tenaga 6 (i) 0 min ➝ 8 min ➝ 16 min ➝ 24 min (d) (i) Sederhana/Moderate
hilang sebagai tenaga bunyi dan tenaga 46.8 g 23.4 g 11.7 g 5.85 g
haba. (ii) Kuat/Strong
Some energy is used to overcome friction. Jisim strontium-93 ialah 5.85 g. (e) (i) Terpesong ke plat positif
Some energy is lost as sound and heat energy. The mass of strontium-93 is 5.85 g. Deflected towards the positive plate
(ii) Peratus atom yang belum mereput
5 mgh = 1 mv² (ii) Tiada pemesongan
2 Percentage of atoms that have not decayed No deflection
v² = 2 gh = 100%- 93.75%
= 2 × 10 × 12.8 = 6.25% (f) (i) Pemesongan kecil
= 256 100%T➝½50%T➝½25%T➝½12.5%T➝½6.25% Small deflection
v = √256 Masa yang diambil/Time taken (ii) Pemesongan lebih besar
v = 16 m/s = 4 × T½
= 4 × 35 min Greater deflection
AKTIVITI PAK-21 = 140 min 3 (a) merosakkan/damaging
Jawapan pelajar/Student’s answer 8.2 (b) dos/dose
1 (a) Dalton/Dalton’s; (c) joule/joule; kilogram/kilogram
SUDUT KBAT terkecil/smallest (d) latar belakang/background
4 Dos sinaran radioaktif = 55 µSv/batang rokok
(a) Tenaga keupayaan ➝ Tenaga kinetik (b) neutral/neutral Dose of radioactive radiations = 55 Sv/cigarette
➝ Tenaga keupayaan Jumlah dos = 5 × 7 × 55 µSv
AKTIVITI PAK-21 Total dose = 1925 µSv
Potential energy ➝ Kinetic energy Jawapan pelajar/Student’s answer
➝ Potential energy 8.4
2 (a) Suatu atom natrium menderma satu 1 (a) usia/age
(b) S akan berhenti dahulu. Banyak tenaga elektron. Selepas itu, ion natrium itu
digunakan untuk mengatasi geseran dalam mempunyai 11 proton dan 10 elektron. (b) ketebalan/thickness
minyak masak. Minyak masak mempunyai Bilangan proton melebihi bilangan (c) baja/fertilisers
geseran tertinggi. elektron sebanyak 1. Maka, ion natrium (d) Pengawetan/ preservation
bercas +1. (e) barah/cancerous;
S will stop first. A lot of energy is used to overcome radioterapi/radiotheraphy
the friction. Cooking oil has the highest friction. A sodium atom donates an electron. After (f) Natrium-24/Sodium-24; bekuan/clot;
that, the sodium ion have 11 protons and salur/vessel
SUDUT PISA/TIMSS 10 electrons. The number of protons exceeds 2 (a) plumbum/lead
(a) Kerja tidak dilakukan/Work is not done 3 the number of electrons by 1. Therefore, the (b) robotic/robotic
(b) Kerja tidak dilakukan/Work is not done 3 sodium ion has a +1 charge. (c) perlindungan/protective
(c) Kerja tidak dilakukan/Work is not done 3 (d) lencana/badge
(e) tebal/thick
(f) selamat/safely

© Global Mediastreet Sdn. Bhd. (762284-U) J9

SAINS DAN APLIKASI HARIAN BAB 9 SUDUT PISA/TIMSS
Matahari menjana tenaga melalui tindak balas
Bahan Q. Kerana separuh hayatnya tidak 9.1 nuklear yang dinamakan pelakuran nukleus.
terlalu pendek atau tidak terlalu Panjang. 1 (a) Korona/Corona The Sun generates its energy from a nuclear reaction
Bahan Q ditambahkan ke dalam air pada tangka (b) Kromosfera/Chromosphere called nuclear fusion.
simpanan. Jika terdapat kebocoran paip, bacaan (c) Fotosfera/Photosphere
yang tinggi akan ditunjukkan pada meter. (d) Zon perolakan/Convection zone PRAKTIS BAB 9
Substance Q. Because its half-life is not too short or 1 (a) Bilangan tompok Matahari meningkat
too long. Q is added into the water in the storage tank. (e) Zon radiasi/Radiation zone
Higher readings of the meter will show up if there is (f) Teras/Core ke puncak tertinggi. Ini menunjukkan
a leakage. 2 (a) Semarak suria/Prominance Matahari berada dalam fasa paling aktif
(b) Granul/Granule dalam kitaran suria.
AKTIVITI PAK-21 (c) Nyalaan suria/Solar flare The number of Sunspots increases to the
Jawapan pelajar/Student’s answer (d) Tompok Matahari/Sunspots highest peak. This shows the Sun is in the
3 (a) Fotosfera/Photosphere most active phase of the solar cycle.
SUDUT KBAT (b) Teras/Core (b) Graf terus menurun hingga mencapai
(c) Kitaran suria/Solar cycle tahap minimum pada tahun 2020.
M T➝½ ½M T➝½ ¼M T➝½ 1/8M T➝½ 1/16M (d) Lentingan jisim korona The graph continued to decline until it
Coronal mass ejection reaches a minimum level in 2020.
T½ T½ (e) Angin suria/Solar wind (c) Tompok Matahari mempengaruhi cuaca
➝ 1/32M ➝ 1/64M 4 Keamatan cahaya korona dan kromosfera di Bumi secara langsung.
Jisim P/Mass of P = 1/64 M sangat rendah berbanding cahaya yang Sunspots affect the weather pattern on the
Jisim Q/Mass of Q = 63/64 M dipancarkan oleh Matahari. Maka, kedua- Earth directly.
(63/64) M dua lapisan itu hanya kelihatan apabila
Nisbah/Ratio = (1/64) m Matahari dihalang oleh Bulan.
The light intensity of the corona and the
= 63 chromosome is very low compared to the light
Masa yang diambil/Time taken = 6 × T ½ emitted by the Sun. Therefore, the two layers
=6×5 are only visible when the Sun is blocked by the BAB 10

= 30 jam/hour Moon. 10.1
5 Tompok matahari terbentuk apabila 1 (a) Nicolaus Copernicus
SUDUT PISA/TIMSS
Apabila/When t = 0, kereaktifan/Reactivity = 160 gumpalan gas panas dari teras Matahari (b) Claudius Ptolemy
Apabila/When t = 15, kereaktifan/ Reactivity = 80 dihalang daripada muncul di permukaan 2 Nicolaus Copernicus/Nicolaus Copernicus;
− t ½ =15 minit/minutes fotosfera oleh medan magnet Matahari. Ia
muncul sebagai kawasan yang lebih gelap heliosentrik/heliocentric; Matahari/Sun
berbanding kawasan lain kerana suhunya
PRAKTIS BAB 8 yang lebih rendah. 10.2
Sunspots are formed when the clumps of hot 1 (a) (i)
1 (a) P : 512 ➝ 256 ➝ 128 ➝ 64 ➝ gas from the core of the Sun are prevented from
32 ➝ 16 ➝ 8 ➝ 4 ➝ 2 ➝ 1 appearing on the surface of the photosphere by the (b) (iii)
Solar magnetic field. It appears as a darker area (c) (ii)
Q : 8 ➝ 4 ➝ 2 ➝ 1 than other areas due to lower temperatures. (d) (v)
Selepas 27 minit, jisim P = jisim Q = 1 g. 6 Menjadi perisai yang melindungi hidupan di (e) (iv)
After 27 minutes, mass of P = mass of Q = 1 g. Bumi daripada bahaya ribut suria. 2 (a) Prob angkasa lepas
(b) Satu atom kalsium menderma dua Become a shield that protects the life on Earth from Space probe;
the danger of solar storm. Menghantar imej dan data ke Bumi
elektron. Ia menyebabkan ion kalsium Send images and data to the Earth
mempunyai 20 proton dan 18 elektron. 9.2 (b) Stesen angkasa lepas/Space station;
Bilangan proton melebihi bilangan 1 Cuaca angkasa lepas ialah perubahan keadaan Terapung di angkasa untuk
elektron sebanyak 2. Maka ion kalsium alam sekitar di kawasan yang berhampiran
bercas +2. dengan Bumi atau kawasan dari atmosfera membolehkan angkasawan menjalankan
A calcium atom donates two electrons. This Matahari hingga atmosfera Bumi. kajian saintifik di angkasa lepas.
cause the calcium ion has 20 protons and Space weather is a change of environmental Floats in space to allow astronauts to carry
18 electrons. The number of protons exceeds conditions in areas close to Earth or from the Sun
the number of electrons by 2. Therefore, the out scientific investigation in the space.
calcium ion has a +2 charge. atmosphere to the Earth atmosphere. (c) Teleskop angkasa lepas/Space telescope;
(c) (i) Sinar beta/Beta radiation Membantu ahli astronomi untuk
(ii) Kuat/Strong 2 (a) Zarah-zarah bercas angin suria
2 (a) Sinar beta/Beta radiation terperangkap dalam lapisan menemui objek-objek di angkasa lepas
(b) Apabila botol tersebut diisi dengan magnetosfera dan mengikut laluan Helps astronomers to discover objects in the
penuh, bacaan meter pengesan akan medan magnet bumi ke arah kutub utara
mencatatkan bacaan yang rendah. serta kutub selatan. Zarah-zarah tersebut space.
Apabila botol tersebut tidak isi dengan kemudiannya memasuki atmosfera (d) Kapal angkasa ulang-alik/Space shuttle;
penuh, bacaan meter pengesan akan bumi lalu berlanggar dengan molekul Mengangkut angkasawan dan bahan
mancatatkan bacaan yang tinggi. Botol
itu akan ditolak oleh unit kawalan keperluan mereka ke stesen angkasa
kualiti. lepas
When the bottle is fully filled, the detecting To carry astronauts and the supplies to the
meter will show a lower reading. When the
space station
bottle is not fully filled, the detecting meter
nitrogen dan oksigen. Akibatnya, cahaya 3 (a) RazakSAT 3
will show a higher reading. The bottle will be berwarna-warni terbentuk. TiungSAT 3
Particles charged from solar winds are
rejected by the quality control unit. trapped in the magnetosphere layer and follow
(c) Nitrogen-15 atau fosforus-32 the magnetic field path of the earth towards the MEASAT-3b 3
Nitrogen-15 or phosphorus-32
(d) Bahan radioaktif yang memancarkan north poles and the south pole. The particles 4 (a) Komunikasi/Communication
then enter the atmosphere of earth and collide (b) Ramalan cuaca/Weather forecasting
sinar alfa digunakan dalam alat with nitrogen and oxygen molecules. As a (c) Pertahanan/Defence
pengesan asap kebakaran. Lintasan result, colourful light is formed. (d) Navigasi/Navigation
sinar alfa dalam udara adalah pendek. (e) Penderiaan jauh/Remote sensing
Oleh itu, sinar ini tidak menjejaskan (b) Tidak kerana fenomena aurora biasanya
kesihatan penggunanya jika dipasang berlaku di kutub utara atau kutub
pada tempat yang tinggi. selatan.
The radioactive substance emits the used of No because the aurora phenomenon usually SAINS DAN APLIKASI HARIAN
alpha radiation in the smoke detector. The occurs in the north pole or the south pole. GPS ialah sistem kedudukan global. Sistem
alpha radiation paths in the air are short. kedudukan global merupakan sistem navigasi
Therefore, this radiation does not affect the SUDUT KBAT menggunakan satelit. GPS pada satelit akan
health of its users if it is installed on high (a) Ribut suria telah berlaku menghantar kedudukan secara berterusan dan
Solar storm has occurred isyarat akan diterima oleh penerima GPS.
ground. (b) Peningkatan bilangan tompok Matahari Satelit GPS dapat berfungsi dengan berkesan
jika menerima isyarat tanpa gangguan dengan
yang terbentuk. pandangan daripada langit.
Increased number of Sunspots formed.

© Global Mediastreet Sdn. Bhd. (762284-U) J10

The GPS is the global positioning system. Global (ii) Untuk mengambil foto-foto di C
positioning system is a navigation system using angkasa lepas dan menghantar
satellites. GPS on the satellite will transmits its kembali ke Bumi Perbincangan/Discussion:
position continually and the signal will be received To take the photos from outer space and A 1. (a) Sumber cahaya/The source of light
by the GPS receiver. In order to function effectively, it
requires unobstructed view of the sky. send back to the Earth (b) Untuk mendapatkan cahaya
matahari untuk fotosintesis
5 (a) Alam sekitar/Environment AMALI To obtain sunlight for photosynthesis
(b) Pertanian/Agriculture EKSPERIMEN 1.1 (c) Fototropisme positif
(c) Perhutanan/Forestry Pemerhatian/Observation: Phototropism positive
(d) Geologi/Geology Jawapan murid/Student’s answer 2. (a) Menjauhi sumber cahaya
Perbincangan/Discussion: Away from the source of light
6 (a) Penghijrahan ke planet baharu 1. Hujung jari dan bibir/Fingertips and lips (b) Untuk mengelakkan daripada kering
Migrating to a new planet 2. (a) Ketebalan lapisan epidermis: Semakin To avoid being dried up
(c) Fototropisme negatif
(b) Mencari lebih banyak sumber dari tebal lapisan, semakin kurang peka kulit Phototropism negative
planet lain Thickness of epidermis layer: The thicker the B 1. Untuk menyerap kelembapan dalam
udara
Finding more resources from other planets layer, the less sensitive is the skin To absorb moisture in the air
(c) Mencari sumber baharu untuk makanan (b) Jumlah reseptor: Semakin banyak 2. (a) Hidrotropisme/Hydrotropism
(b) Membolehkan akar tumbuhan
dan air dari planet lain jumlah reseptor, semakin peka kulit mencari air di bawah tanah
Finding new sources of food and water from Amount of receptors: The higher the amount Enable the roots of plants to seek water
underground
other planets of receptors, the more sensitive is the skin C 1. Untuk mengelakkan keputusan
Kesimpulan/Conclusion: eksperimen daripada di pengaruhi oleh
SUDUT KBAT 1. sentuhan/touch cahaya matahari atau fototropisme
(a) X: Roket/Rocket 2. hujung jari/fingertips; bibir/lips To prevent the results of the experiment being
3. siku/elbows; belakang leher/back of neck; affected by sunlight or phototropism
Y: Kapal angkasa ulang-alik/Space shuttle 2. Geotropisme/Geotropism
(b) – Y boleh digunakan untuk membuat tapak kaki/foot soles; lengan/arms 3. Untuk memastikan akar tumbuhan
EKSPERIMEN 1.2 tumbuh jauh ke dalam tanah dan
perjalanan berulang kali. Pemerhatian/Observation: mendapat sokongan serta bekalan
Y can be used to travel multiple trips Jawapan murid/Student’s answer air
– Y lebih menjimatkan kos berbanding X. Perbincangan/Discussion: To ensure the roots of plants grow deeply
Y is cheaper than X 1. Untuk menghilangkan rasa larutan yang into the Earth and gain support and water
supply
SUDUT PISA/TIMSS telah diuji
To removes the taste of the solution that have been Kesimpulan/Conclusion:
– Sekiranya tiada satelit di dunia ini, maka 1. cahaya/sunlight
tidak akan ada satelit komunikasi dan kita tested 2. graviti/gravity; air/water
tidak dapat berkomunikasi secara efektif. 2. Umami/Umami
3. Papila/Papilla EKSPERIMEN 2.1
It there is no satellites in this world, then there will Kesimpulan/Conclusion: Perbincangan/Discussion:
be no communication satellites and we would not Manis/sweet; masin/salty; pahit/bitter; 1. lebih tinggi/higher
be able to communicate effectively. umami/umami 2. oksigen/oxygen;
EKSPERIMEN 1.3 karbon dioksida/carbon dioxide
– Tanpa satelit ramalan cuaca, kita tidak akan Pemerhatian/Observation: 3. keruh/cloudy
dapat memberi amaran kepada orang ramai Jawapan murid/Student’s answer
tentang kemungkinan berlakunya bencana Perbincangan/Discussion: Kesimpulan/Conclusion:
alam seperti taufan dan tornado yang 1. Rasa/Taste 1. banyak/more; kurang/less
mungkin meragut banyak nyawa manusia. 2. Rasa makanan tidak dapat dikenal pasti 2. hembusan/exhaled;
sedutan/inhaled
Whitout weather satellites, there would be little dengan baik.
or no warning of disasters such as typhoons and The taste of the food cannot be identified properly. EKSPERIMEN 2.2
tornadoes that would cause thousands of deaths. Kesimpulan/Conclusion: Pemerhatian/Observation:
rasa/taste; hidu/smell meningkat/increase; panas/hot
PRAKTIS BAB 10 EKSPERIMEN 1.4 hitam/black; tar/tar
Pemerhatian/Observation: hijau/green, kuning/yellow; berasid/acidic
1 (a) Satelit/Satellite A 1.
(b) Roket dan kapal angkasa ulang-alik Perbincangan/Discussion:
Bikar/Beaker M 1. menyedut asap rokok merentasi radas
Rocket and space shuttle to suck the cigarette smoke across the apparatus
(c) − Mengesan kedudukan sumber 2. 2. (a) mengeringkan/dries up

semula jadi seperti petroleum dan Bikar/Beaker N (b) hitam/black
mineral (c) mengakis/corrodes
Locate natural resources such as B 1. Bikar/Beaker P 3. Emfisema, alveolus dalam peparu meletus
petroleum and minerals 2. Bikar/Beaker Q apabila dihakis oleh bahan-bahan berasid
− Memantau dan memeta hutan dalam asap rokok
Monitor and map forests Emphysema, alveoli in the lungs erupt when they
− Mengesan keadaan tanah are corroded by acidic substances in the cigarette
Detect soil conditions smoke
− Mengesan dan memantau tumpahan
minyak dan kebakaran hutan Kesimpulan/Conclusion:
Detect and monitor oil spill and forest berbahaya/harmful
fires
(mana-mana satu jawapan/ any one
answer)
(d) − Menghantar isyarat untuk televisyen,
radio, telefon dan sistem komunikasi
lain
Transmit signals for television, radio,

telephone and other communication

system
− Ramalan cuaca/Weather forcasting
2 (a) (i) Teleskop radio/Radio telescope
(ii) Teleskop angkasa Hubble
Space Hubble telescope

(b) (i) Q 33

(ii) Tenaga suria/Solar energy
(c) (i) Untuk mengesan dan mengumpul
gelombang radio dari angkasa lepas

To detect and collect the radio waves

from the outer space

© Global Mediastreet Sdn. Bhd. (762284-U) J11

EKSPERIMEN 2.3 keamatan cahaya/light intensity (d) Tidak/No
Pemerhatian/Observation: kehadiran angin/presence of wind (e) (i) Magnesium oksida/Magnesium oxide
(ii) Aluminium oksida/Aluminium oxide
Stoma Sel pengawal Keputusan/Results: (iii) Zink oksida/Zinc oxide
Stomata Guard cell
190.3 188.2 2.1 (iv) Besi oksida / Iron oxide

193.9 102.8 1.1 (v) Magnesium oksida/Magnesium oxide
(f) Besi ➝ Zink ➝ Aluminium
Iron
C Hipotesis/Hypothesis: Zinc Aluminium
meningkat/increases ➝ Magnesium
Perbincangan/Discussion: Pemboleh ubah/Variables: Magnesium
1. liang/pores
2. saiz/size; kacang/bean (a) Suhu persekitaran Kesimpulan/Conclusion:
3. (a) karbon dioksida/Carbon dioxide Surrounding temperature logam oksida/metal oxide

(b) oksigen/oxygen (b) Kadar transpirasi/Rate of transpiration B Pemerhatian/Observation:
(c) Air/water; wap air/water vapour (c) Jenis tumbuhan/Type of plant; (a) Terbakar dengan cepat/Burn rapidly;
4. kelayuan/wilting; daun-daunnya/leaves Hitam/Black
kelembapan/humidity; (b) Terbakar dengan cepat/Burn rapidly;
Kesimpulan/Conclusion: keamatan cahaya/light intensity; Hitam/Black
stomata/stomata; pertukaran gas dalam daun/ (c) Menyala dengan cepat/Glow rapidly;
gases exchange in the leaves kehadiran angin/presence of wind
Keputusan/Results:
EKSPERIMEN 3.1
Pemboleh ubah/Variables: 200.5 197.4 3.1 Hitam/Black
(a) Jenis aktiviti/Types of activity 207.9 204.0 3.9 (d) Menyala dengan perlahan/Glow slowly;
(b) Kadar danyutan nadi/The pulse rate Hitam/Black
(c) Tempoh masa aktiviti/Duration of activity
D Hipotesis/Hypothesis: Perbincangan/Discussion:
Pemerhatian/Observation: Laju/faster; tinggi/higher (a) Tidak/No
Jawapan murid/Student’s answer
Pemboleh ubah/Variables: (b) (i) Magnesium sulfida
Perbincangan/Discussion: (a) Kehadiran angin/Presence of wind Magnesium sulphide
1. Kadar nadi meningkat (b) Kadar transpirasi/Rate of transpiration (ii) Aluminium sulfida
The pulse rate increase (c) Jenis tumbuhan/Type of plant; Aluminium sulphide
2. Berehat/Rest kelembapan/humidity; (iii) Zink sulfida
3. Kadar denyutan nadi semasa melakukan keamatan cahaya/light intensity; Zinc sulphide
suhu persekitaran/surrounding temperature (iv) Ferum sulfida
aktiviti aktif adalah lebih tinggi daripada Iron sulphide
kadar denyutan nadi yang normal. Ini Keputusan/Results: (c) Ferum ➝ Zink ➝ Aluminium
kerana semasa melakukan aktiviti aktif,
kadar denyutan jantung adalah tinggi 210.5 207.3 3.2 Ion Zinc Aluminium
untuk mengempam oksigen ke seluruh ➝ Magnesium
badan. Kadar pengambilan gas oksigen dan 210.9 209.3 1.0 Magnesium
pembebasan gas karbon dioksida adalah
tinggi semasa melakukan aktiviti aktif. Perbincangan/Discussion: Kesimpulan/Conclusion:
The pulse rate is higher during active activity 1. (a) lebih besar/greater logam sulfida/metal sulphide
compared to the normal pulse rate. This is because
during active activity, the heart rate is higher to (b) terbuka luas/open wider EKSPERIMEN 4.2
pump oxygen to entire body. The rate of oxygen 2. (a) menyerap kelembapan/ absorb moisture Pemerhatian/Observation:
gas and carbon dioxide gas intake is higher during
active activity. (b) lebih besar/greater Campuran Karbon lebih reaktif
4. Kadar denyutan nadi akan lebih tinggi (c) penyejatan/evaporation membara dengan daripada zink
daripada yang dicatatkan dalam jadual. 3. (a) lebih besar/greater perlahan-lahan Carbon is more reactive
The pulse rate will be higher than recorded in the (b) tenaga/energy; mengewap/evaporate Burns fairly bright
table. 4. (a) lebih besar/greater than zinc
(b) lebih banyak/more
Kesimpulan/Conclusion:
Kadar denyutan nadi akan meningkat apabila Kesimpulan/Conclusion: Tiada perubahan Karbon kurang reaktif
melakukan aktiviti fizikal yang aktif. pergerakan udara, suhu persekitaran, No changes daripada aluminium
The pulse rate will increase when carrying out the kelembapan udara dan keamatan cahaya Carbon is less reactive
active physical activities. air movement, surrounding temperature, air humidity Campuran than aluminium
and light intensity membara
Glous brightly Karbon lebih reaktif
EKSPERIMEN 3.3 daripada plumbum
Pemerhatian/Observation: Carbon is more reactive
than lead

Merah Merah Merah/Red Perbincangan/Discussion:
Red Red
1 (a) Zink + Karbon dioksida
EKSPERIMEN 3.2 Zinc Carbon dioxide
A Hipotesis/Hypothesis: Akar/Root Batang/Stem Daun/Leaf (b) Tiada perubahan/No changes
Meningkat/increases (c) Plumbum + Karbon dioksida
Pemboleh ubah/Variables: Perbincangan/Discussion: Lead
(a) Keamatan cahaya/Light intensity 1. Untuk menunjukkan bahagian tumbuhan Carbon dioxide
(b) Kadar transpirasi/Rate of transpiration 2 Plumbum/Lead ➝ Zink/Zinc ➝
(c) Jenis tumbuhan/Type of plant; yang mengangkut air Karbon/Carbon ➝ Aluminium/Aluminium
To show the part of the plants that transport water
kelembapan udara/humidity of air; 2. Xilem/Xylem Kesimpulan/Conclusion:
suhu persekitaran/surrounding temperature; aluminium/aluminium; zink/zinc
Kesimpulan/Conclusion:
kehadiran angin/presence of wind xilem/xylem EKSPERIMEN 5.1
Keputusan/Results: Pemerhatian/Observation:
EKSPERIMEN 4.1 Jawapan murid/Student’s answer
187.2 185.1 2.1 A Perbincangan/Discussion:
(a) oksigen/Oxygen
202.3 201.1 1.2 (b) memisahkan logam daripada kalium Perbincangan/Discussion:
1. membebaskan/given out
B Hipotesis/Hypothesis: manganat (VII) 2. menyerap/absorbed
menurun/decreases separate the metals from potassium 3. Cawan polisterina merupakan penebat
Pemboleh ubah/Variables:
(a) Kelembapan udara/Air humidity manganate (VII) haba yang baik dan dapat meminimumkan
(b) Kadar transpirasi/Rate of transpiration (c) memperlahankan pembebasan oksigen kehilangan haba ke persekitaran.
(c) Jenis tumbuhan/Type of plant; Polystyrene cup is a good heat insulator and can
suhu persekitaran/surrounding temperature; daripada tabung didih minimise the heat loss to the surroundings.
slow down the release of oxygen from the Kesimpulan/Conclusion:
endotermik/endothermic; eksotermik/exothermic
boiling tube

© Global Mediastreet Sdn. Bhd. (762284-U) J12

EKSPERIMEN 6.1 (c) (i) − Tartaric acid is used to produce − The offspring shows variation.
Pemerhatian/Observation: soft drinks The offspring may produce
Asid tartarik digunakan untuk more yields and have higher
Malap/Dim Terang/Bright menghasilkan minuman bergas. resistance towards diseases.

Terang/Bright Malap/Dim − Acetic acid is used as artificial Zuriat menunjukkan variasi.

Perbincangan/Discussion: vinegar. Zuriat mungkin mempunyai lebih
1. lebih banyak/more Asid asetik diguna sebagai cuka
2. kurang/less buatan. banyak hasil dan mempunyai
3. Malap/Dim
4. Untuk memudahkan memagnetkan dan (ii) Aminah can use oranges, limes or ketahanan terhadap penyakit yang

menyahmagnet lemon to replace the artificial lebih tinggi.
To facilitate magnetizing and decoding
5. Supaya voltan arus ulang-alik dapat diubah vinegar because the fruits are 9 (a) P: The bacteria changes nitrogen
So that the voltage of alternating current can be gas into nitrogenous compounds.
acidic. These compounds are used by the
change Aminah boleh menggunakan oren,
limau, atau lemon untuk menggantikan plant to make proteins. The plant
provides food and shelter for the
cuka buatan itu kerana buah-buahan bacteria.
itu adalah berasid.
Bakteria menukarkan gas nitrogen
Kesimpulan/Conclusion: 7 (a) (i) Both gases are colourless, kepada sebatian bernitrogen. Sebatian
sekunder/Secondary; injak naik/set-up odourless and tasteless.
Kedua-dua gas itu adalah tidak ini digunakan oleh tumbuhan untuk

berwarna, tidak berbau dan tidak ada membuat protein. Tumbuhan itu

EKSPERIMEN 7.1 rasa. membekalkan makanan dan
Pemerhatian/Observation:
Jawapan murid/Student’s answer (ii) 1. Oxygen is neutral but carbon perlindungan untuk bakteria itu.
Perbincangan/Discussion:
1. Aktiviti/Activity I dioxide is acidic. Q: The mosquito is a parasite. It
2. Aktiviti/Activity I: obtains food from the host. It can
Daya geseran/Frictional force Oksigen adalah neutral tetapi infect the host with diseases thus
Aktiviti/Activity II: karbon dioksida adalah berasid.
Daya tarikan graviti/Gravitational force harming the host.
3. (a) Kerja yang dilakukan/Work done 2. Carbon dioxide dissolves in Nyamuk ialah parasit. Nyamuk
sodium hydroxide solution
(b) Masa yang diambil/Time taken but oxygen does not dissolve mendapat makanan daripada perumah.
Kesimpulan/Conclusion: Nyamuk boleh menjangkit perumah
1. Kerja/Work in sodium hydroxide solution. dengan penyakit lalu menjejaskan
2. Kuasa/Power Karbon dioksida larut dalam
larutan natrium hidroksida perumah.

tetapi oksigen tidak larut dalam (b) Space/ Sunlight/ Water/ Mineral salt
Ruang/ Cahaya matahari/ Air / Garam mineral
larutan natrium hidroksida. (Any two/ Mana-mana dua)
(b) − Some of the oxygen is used to
oxidise food and energy is (c)
Rabbit Snake
released.
Sebahagian oksigen digunakan untuk Arnab Ular

KERTAS MODEL PT3 mengoksidakan makanan dan tenaga
Bahagian A/Section A dibebaskan.
1 B 2 D 3 D 4 D − During respiration, body cells use Grass Grasshopper Frog
6 B 7 B 8 A 9 B 5 B Rumput Belalang
11 B 12 A 13 D 14 B 10 C oxygen and produce carbon Katak
16 C 17 C 18 D 19 B 15 A
20 B dioxide and water vapour.
Semasa respirasi, sel-sel badan
menggunakan oksigen dan Snail Bird
Siput babi Burung
Bahagian B/Section B menghasilkan karbon dioksida dan wap
1 (a) X: Retina/Retina air.
Y: Vitrous humour/Gelemaca
(b) (i) 3 (c) (i) 1. Lead compounds Dam
(iv) 3 Sebatian plumbum Empangan
2 (a) P ➝ R ➝ T ➝ Q ➝ S 2. Carbon monoxide 10 (a) (i)
(b) J: Small intestine/Usus kecil
K: Liver/Hati Karbon monoksida Pylon
3 (a) (i) speed/kelajuan (ii) 1. Use unleaded petrol
(ii) electrostatic/elektrostatik Guna petrol tanpa plumbum Pilon
(b) (i) 3 2. Install catalytic converters Generator
(iii) 3 Memasang pengubah bermangkin
4 (a) (i) Has a one cell thick wall 8 (a) Penjana
Mempunyai dinding setebal satu sel X Amoeba Binary fission
(ii) Covered with network of blood Ameba Belahan dedua Water from the dam flows down.
It has potential energy and kinetic
capillaries Y Hydra Budding energy. The kinetic energy is
Diliputi oleh jaringan kapilari darah Hidra Penunasan used to turn the turbines. Then,
(b) (i) Tar/Tar the turbines turn the generator.
(ii) Nicotine/Nikotina (b) (i) Both methods are asexual Electrical energy is generated and
5 (a) (i) Calcium carbonate/Kalsium karbonat reproduction. transmitted to consumers.
(ii) Mineral water/Air mineral
(b) (i) Can only be separated chemically Kedua-kedua kaedah itu adalah Air daripada empangan mengalir
Hanya dapat dipisahkan melalui tindak turun. Air itu mempunyai tenaga
pembiakan aseks. keupayaan dan tenaga kinetik. Tenaga
balas kimia (ii) Method X involves the division of kinetik ini digunakan untuk memutarkan
(ii) Can be classified into metal and turbin. Kemudian, turbin itu
a single parental cell into two memutarkan penjana. Tenaga elektrik
non-metal daughter cells while method Y dijanakan dan dihantar kepada
Boleh dikelaskan kepada logam dan involves the formation of bud at pengguna.
the body of the organisms. (ii) 1. It is pollution free.
bukan logam Kaedah X melibatkan pembahagian Ianya bebas pencemaran.
2. Water is a renewable source
Bahagian C/Section C satu sel induk kepada dua sel anak of energy.
6 (a) (i) Distilled water/Air suling Air ialah sumber tenaga yang boleh
(ii) Cooking oil/Minyak masak manakala kaedah Y melibatkan
(b) (i) Both are corrosive. diperbaharui.
Kedua-dua bersifat mengakis. pembentukan tunas pada badan (b) (i) Invent more energy-saving
(ii) Both shows their acidity or
organisma. devices that use less energy.
alkalinity in liquid form. (c) (i) Sexual reproduction involves Mereka cipta lebih banyak peralatan
Kedua-dua menunjukkan sifat alkali
gametes / sex cells while asexual yang menjimatkan tenaga.
atau asid dalam keadaan cecair. reproduction does not. (ii) Use more renewable energy
Pembiakan seks melibatkan gamet / sel
such as solar energy and wind
pembiakan manakala pembiakan aseks energy.

tidak.
(ii) − Sexual reproduction
Pembiakan seks

© Global Mediastreet Sdn. Bhd. (762284-U) J13

Guna tenaga yang boleh zarah tidak dapat bergerak bebas dan Air gula merah adalah dalam keadaan
cecair manakala hablur gula merah
diperbaharui seperti tenaga suria tersusun dalam keadaan teratur.
(iii) Colourless/ Odourless/ Tasteless/ berada dalam keadaan pepejal.
dan tenaga angin.
Poor heat and electric conductor/ Dalam keadaan cecair, jarak antara
(iii) Construct more buildings Its density is 1 g per cm3, its
which can use solar energy. boiling point is 100 °C and its zarah-zarah gula merah adalah lebih
melting and freezing point are
Bina lebih banyak bangunan both 0 °C. besar. Ini membolehkan air gula itu
Tiada warna/ Tiada bau/ Tiada rasa/
yang boleh menggunakan tenaga dicampur dengan ais dan bahan-
Konduktor haba dan elektrik yang
suria. bahan yang lain dengan lebih mudah
lemah/Ketumpatannyaialah1gpercm3,
(c) (i) Palm oil/Kelapa sawit kerana kadar keterlarutannya adalah
takat didihnya ialah 100 °C/Takat
(ii) Palm oil can be planted widely in lebih cepat.
lebur dan takat bekunya ialah 0 °C.
Malaysia. (b) Seawater consists of various types of (ii) Small partition

Kelapa sawit boleh ditanam secara minerals in it. The presence of these made of plastic
impurities causes the boiling point of Bahagian lebih
the seawater to differ from that of kecil yang diperbuat
besar-besaran di Malaysia. distilled water. daripada plastik
11 (a) (i) Liquid Solid Air laut mengandungi pelbagai jenis mineral
di dalamnya. Kehadiran bendasing ini
Cecair Pepejal menyebabkan takat didih air laut berbeza
daripada air suling.
(ii) Water particles move slower as (c) (i) The brown sugar syrup is in the Explanation/Penerangan:
The additional of smaller
they lose energy when placed in form of liquid while crystal brown partition allow the user to place
sugar is in the form of solid. In material that can insulate heat
the freezer. The force between the the form of liquid, the distance from entering the container such
between particles of the brown as a towel or polystyrene. Ice
particles becomes stronger and sugar are larger. This allow the cubes added with salt can also be
syrup to mix with the ice and the put into the partition to reduce the
finally the space between the other ingredient becomes easier as temperature.
the rate of dissolving is faster. Penambahan ruang yang lebih kecil
particles is reduced, thus the membolehkan pengguna memuatkan
bahan yang dapat menebat haba
particles are unable to move seperti tuala atau polistirena. Kiub
ais yang ditambah dengan garam juga
freely and arranged in fixed boleh dimasukkan ke dalam ruangan
itu untuk mengurangkan suhu.
position.

Zarah-zarah air bergerak dengan

lebih perlahan kerana kehilangan

tenaga apabila berada di dalam peti

sejuk. Daya tarikan antara zarah-zarah

menjadi lebih kuat dan akhirnya ruang

antara zarah berkurangan lalu zarah-

© Global Mediastreet Sdn. Bhd. (762284-U) J14