Syok Praktis PBD (2023) Science TH4

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PBD SYOK! Praktis PBD



Subject YEAR SYOK! Praktis PBD PRAKTIS
Subject
1 2 3 4 5 6
SCIENCE Bahasa Melayu ✔ ✔ ✔ ✔ ✔ ✔ Year

Tatabahasa
✔
✔ ✔
Penulisan ✔ ✔ ✔ PBD
SYOK! Praktis PBD series features topical
practices to supplement the textbooks and the English ✔ ✔ ✔ ✔ ✔ ✔
Classroom Assessment (Pentaksiran Bilik Darjah or 4
PBD). Grammar ✔ ✔ ✔

These practices are useful as reinforcement and Writing ✔ ✔ ✔
enrichment materials, as well as formative assessments Matematik / ✔ ✔ ✔ ✔ ✔ ✔


to gauge pupils' learning. The concept of HOTS and Mathematics KSSR SEMAKAN
i-THINK are also incorporated in the practices to fulfi l Sains / ✔ ✔ ✔ ✔ ✔ ✔ SCIENCE
Based on the
Science
the latest requirements. Based on the
Sejarah ✔ ✔ ✔ Textbook and
Summative assessments are also provided to assess SCIENCE
pupils' overall achievement. This series is indeed the Pendidikan Islam ✔ ✔ ✔ ✔ ✔ ✔ DSKP
best choice to enhance teaching and learning in the
subject. Pelajaran Jawi ✔ ✔ ✔ ✔ ✔ ✔
Lee Sing Yin
Norhayati Mohamad Noh
© Penerbitan Pelangi Sdn. Bhd. 2023 Gamifi ed Quizzes
All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in Suwaibatullaslamiah Jalaludin
any form or by any means, electronic, photocopying, mechanical, recording or otherwise, without the prior (Textbook Writer) Wordwall
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First Published 2023 Year 4
Syok Study


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01.indd 1 28/09/2022 10:55 AM

CONTENTS






Practice 6.1 Sound .......................................................... 40
Summative Practice 6 ......................................... 42
1 Scientific Skills .......................................... 1
Gamified Quiz 3 .............................................. 45
Syok Study .......................................................... 1
1.1 Science Process Skills ................................. 2 Mid-Year Assessment ............................................... 46
Summative Practice 1 ........................................... 4
Practice Practice Energy
2 Humans ................................................... 6 7 ...................................................... 55

Syok Study .......................................................... 6 Syok Study .......................................................... 55
2.1 Human Breathing Process .......................... 8 7.1 Energy and Their Sources .......................... 57
2.2 Excretion and Defecation ............................ 10 7.2 Renewable and Non-renewable Energy
2.3 Response to Stimuli ..................................... 11 Sources ........................................................ 59
Summative Practice 2 ......................................... 12 Summative Practice 7 .......................................... 61
Gamified Quiz 1 ............................................. 13 Practice
Practice 8 Materials .................................................. 63
3 Animals .................................................... 14 Syok Study .......................................................... 63

Syok Study .......................................................... 14 8.1 Basic Sources of Materials .......................... 64
3.1 Breathing Organs of Animals ..................... 15 8.2 Properties of Materials ................................ 65
3.2 Vertebrates .................................................. 17 Summative Practice 8 ......................................... 66
Summative Practice 3 ......................................... 20 Gamified Quiz 4 ............................................. 69
PAK-21 Activity ..................................................... 22 HOTS Practice ...................................................... 69
HOTS Practice ..................................................... 23 PAK-21 Activity ..................................................... 70
Practice
4 Plants ........................................................ 24 Practice
9 Earth .......................................................... 72
Syok Study .......................................................... 24
4.1 Plant Responses to Stimuli .......................... 25 Syok Study .......................................................... 72
4.2 Photosynthesis ............................................ 26 9.1 Gravity of Earth ........................................... 73
Summative Practice 4 ......................................... 27 9.2 Rotation and Revolution of Earth ................ 74
Gamified Quiz 2 .............................................. 30 Summative Practice 9 ......................................... 76
Practice Practice
5 Properties of Light .................................. 31 10 Machines ................................................. 80

Syok Study .......................................................... 31 Syok Study .......................................................... 80
5.1 Light Travels in a Straight Line ................... 33 10.1 Levers ........................................................... 82
5.2 Reflection of Light ........................................ 34 10.2 Simple Machines and Complex Machines ... 83
5.3 Refraction of Light ........................................ 35 Summative Practice 10 ........................................ 86
Summative Practice 5 ......................................... 36 Gamified Quiz 5 ............................................. 89
Practice
6 Sound ....................................................... 39 Year-End Assessment ............................................... 90
Syok Study .......................................................... 39 Answers ..................................................................... A1










IFC Contents.indd 1 27/09/2022 1:51 PM

Name: ........................................................................... Class: ............................ Date: ............................


Practice Theme 2 Life Science

2 Humans






SYOK Study



2.1 Human Breathing Process 2.2 Excretion and Defecation
1. The removal of waste products from the body
1. The breathing process provides the body with is called excretion.
oxygen and gets rid of waste, namely carbon
dioxide. The breathing organ in humans is the
lungs. Name of organ: Lungs
Waste products: Carbon
2. During the breathing process, humans use the dioxide, water vapour
nose, trachea and lungs.


Name of organ: Skin
Nose
Waste product: Sweat
Trachea


Lung
Name of organ: Kidneys
Waste product: Urine
Inhale air
3. Inhaled air contains more oxygen compared
to exhaled air. 2. Defecation is the removal of faeces from the
anus. Faeces is not produced at the anus.

Nose
Large
Trachea Small intestine
intestine
Lung
Anus
Exhale air
3. Humans must carry out excretion and
4. Exhaled air contains more carbon dioxide defecation to
compared to inhaled air. • maintain their health
• control the blood concentration in the body
5. The rate of breathing is the number of chest • control body temperature
movements (up and down) in one minute.

6. The rate of breathing depends on the type of 4. Faeces and waste products that cannot be
activity that is carried out. The more intense the removed from the body will lead to kidney
activity, the higher the rate of breathing. stones and constipation.


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Practice 2.indd 6 27/09/2022 1:53 PM

Science Year 4 Practice 2 Humans


2.3 Response towards Stimuli

1. Stimuli: Changes in the environment.
2. Sensory organs receive stimuli. The table below
shows a summary of the sensory organs and
their functions.

Sensory organs Function

Eyes Sight • Responding towards the traffic lights
(stimuli) tells road users when to move
Ears Hear
and to stop.
Nose Smell

Skin Touch 5. Human response is important:
• to avoid injury
Tongue Taste
• to save oneself
3. Response: The action taken towards the stimuli. • to obtain information and to communicate
4. The following shows several responses and 6. Alcohol, glue and drugs disrupt and delay the
stimuli: human response towards a stimuli.











Drinking alcohol Sniffing glue



• Responding towards the honking of the
car (stimuli) prevents an accident.




Drugs abuse

7. Alcohol causes one to be drunk and can lead
to addiction.

8. Glue sniffing causes hallucinations.
9. Drug abuse can also lead to addiction.

10. In all three situations above, the substances
• Responding towards the bad taste and can lead to a disruption to the body’s ability to
smell of the spoiled milk (stimuli) prevents function normally for as long as the substances
food poisoning. remain in the body.




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Practice 2.indd 7 27/09/2022 1:53 PM

Science Year 4 Practice 2 Humans

2.1 Human Breathing Process Textbook Pages: 23 – 52

A The diagram below shows the organs involved in the breathing process. Label the organs.
Then, label the arrows correctly with “Inhalation” or “Exhalation”. PL 1


1.





2.





3.











B Fill in the blanks with the correct answer. PL 3 PL 4 HOTS Analysing

oxygen carbon dioxide moving upwards


moving downwards inhaling exhaling



1 2













(i) This student is . (i) This student is .

(ii) His chest is . (ii) His chest is .
(iii) The inhaled air contains more (iii) The exhaled air contains more
compared to compared to
exhaled air. inhaled air.




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Practice 2.indd 8 27/09/2022 1:53 PM

Science Year 4 Practice 2 Humans


C Determine if the following activities are “strenuous”, “medium” or “not strenuous”. Then,
determine the rate of breathing for each activity. Colour your answers.

1 2










Activity: Activity:
Strenuous Medium Not Strenuous Medium Not

The rate of breathing: The rate of breathing:

Low Medium High Low Medium High



3 4









Activity: Activity:

Strenuous Medium Not Strenuous Medium Not

The rate of breathing: The rate of breathing:
Low Medium High Low Medium High




5 6









Activity: Activity:

Strenuous Medium Not Strenuous Medium Not

The rate of breathing: The rate of breathing:
Low Medium High Low Medium High



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Practice 2.indd 9 27/09/2022 1:53 PM

Science Year 4 Practice 2 Humans

2.2 Excretion and Defecation

A The diagram below shows the processes that occur in the human body.


1. Complete the chart below, then answer the following questions. PL 2

Removal of waste products from the human body

through






by
by





Waste product Waste product Waste product Waste product






2. What is the meaning of excretion?

Excretion is the process of removing from the .


3. What is the meaning of defecation? PL 1
Defecation is the process of removing from the .


4. What is the difference between excretion and defecation?

Excretion removes from the body, whereas defecation removes

food from the body.


5. What is the difference between the anus and the other excretory organs?
Faeces is not in the anus. The anus only faeces.


6. A patient informs his doctor that he has difficult urinating. Circle the condition this patient might
have.


Constipation Food poisoning Kidney stones




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Practice 2.indd 10 27/09/2022 1:53 PM

Science Year 4 Practice 2 Humans

2.3 Response towards Stimuli

A Complete the table below by identifying the stimuli, sensory organ involved and response
in each situation. PL 4 HOTS Analysing

Sensory organ
Situation Stimuli Response
involved

1.








2.








3.








4.











B The following list shows habits that must be avoided. State the effects of these habits.



Habit The disruptive effect of the habit


1. Glue sniffing


2. Drug abuse


3. Alcohol consumption




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Practice 2.indd 11 27/09/2022 1:53 PM

Science Year 4 Practice 2 Humans


Sumative Practice 2






Objective Questions 2.2 Excretion and Defecation
3. Diagram 3 shows an excretory organ.
2.1 Human Breathing Process
1. Diagram 1 shows the organs involved in
breathing.



P Diagram 3
Q Which of the following is the waste product
of the organ?
A Carbon dioxide C Faeces
R
B Urine D Sweat
Diagram 1 4. Kamarul is experiencing difficulty

Which of the following shows the air defecating. Among the following, what is
passage for inhalation? the condition that he has?
A P, Q, R A Heart attack
B P, R, Q B COVID-19
C R, P, Q C Constipation
D R, Q, P D Malnutrition

2. Digram 2 shows a child blowing up a 2.3 Response towards Stimuli
balloon.
5. Diagram 4 shows a boy who feels hungry
K when he smells his mother’s cooking.

J




Diagram 2
Which of the following statements is true
about the air in J and K? Diagram 4
A J contains more carbon dioxide than Which of the following is true?
in K. A The smell of the food is a response.
B J contains more oxygen than K. B The smell of the food is a sensory
C J and K contain the same amount of organ.
oxygen. C The boy’s feeling of hunger is a
D J and K contain the same amount of response.
carbon dioxide.
D The boys feeling of hunger is a stimuli.


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Practice 2.indd 12 27/09/2022 1:53 PM

Science Year 4 Practice 2 Humans


Subjective Questions

1. Class 4A has conducted an investigation to determine the rate of breathing after carrying out
CS 2.1 activities J, K and L. After the activity, the result of the investigation for one of the students is
recorded in Table 1 below.
Table 1
Activity J K L

Chest movement per minute 28 times 21 times 35 times
Rate of breathing (Low / Medium / High)

(a) Complete the rate of breathing in Table 1.
(b) Among the following, which are possibly J, K and L? Match.

J K L







(c) Among the following, which is a possible reading for the number of chest movement per
minute at rest, that is, before any activity is carried out? Circle your answer.

18 times 30 times 45 times


2. Diagram 1 shows a situation.
CS 2.3 (a) Based on Diagram 1, state the response towards the stimuli.




(b) Which sensory organ is involved in the response?


Diagram 1
(c) What will happen if the boy did not move his hand away?



(d) Based on you answer in 2(c), state two importance of caring for your sensory organs.







Gamified
Quiz 1






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Practice 2.indd 13 27/09/2022 1:53 PM

Name: ........................................................................... Class: ............................ Date: ............................

Practice Theme 2 Life Science


4 Plants






SYOK Study


4.1 Plant Responses to Stimuli (c) Response to touch
• Some plants respond to touch. For example,
1. Plants do not move like animals. the mimosa pudica plant would closes its
2. Plants respond to external stimuli as shown leaves when touched to protect itself.
below:

Part of the Plant Type of Stimulus
Root Water and
gravitational pull
Leaf Touch

Shoot Light
(d) Response to gravity
(a) Response to water • The root grows into the ground in the direction
• The root of the plant responds to water and of gravitational pull.
gravitational pull.
4.2 Photosynthesis
Porous clay
container 1. Green plants are able to make their own food
through the photosynthesis process.

Air
Light energy
Oxygen
Roots bend
towards water
Carbon dioxide
(b) Response to light
• The shoot of the plant moves towards the
direction of the light. Water





Chlorophyll
Light
Sunlight








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Practice 4.indd 24 27/09/2022 1:54 PM

Science Year 4 Practice 4 Plants

4.1 Plant Responses Textbook Pages: 69 – 86

A The diagram below shows several conditions. State the type of stimulus and the part of the
plant that responds towards the situation shown. PL 1


The part of the plant that
Situations Type of stimulus
responds
1. 2.








3. 4.









5. 6.
Moist cotton


Root




7. 8.










B The following diagram shows the conditions of a peanut seed germinated in a Petri dish.
Based on the diagram, describe briefly the responses of the different parts of the plant
towards stimuli on the peanut seedling. PL 3 HOTS Applying















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Practice 4.indd 25 27/09/2022 1:54 PM

Science Year 4 Practice 4 Plants

4.2 Photosynthesis


A Observe the following diagram and fill in the blanks with the correct answers. PL 2
1. The process of plants making their own food is
known as .

Light energy
2. Plants need energy and light from the
Oxygen .


Carbon 3. The green colour on the leaf is chlorophyll.
dioxide Chlorophyll helps plants in producing
.

4. Plants absorb through the
Water fine pores on the leaves.

5. Plants absorb water and minerals through the
.


B Based on the diagram below, write briefly on the needs of the plants to carry out the
photosynthesis process and the results of photosynthesis. HOTS Analysing






Sunlight

Carbon
dioxide
+ Starch
Water is
produced
Oxygen



C Read the information below.





Why is it so? Give your reasons. HOTS Evaluating











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Practice 4.indd 26 27/09/2022 1:54 PM

Science Year 4 Practice 4 Plants


Sumative Practice 4








Objective Questions Which of the following happens to the
seedlings after four days?
A The seedlings move upwards.
4.1 Plant Responses to Stimuli
B The roots move to the right.
1. Diagram 1 shows a situation. HOTS Analysing C The seedlings move to the left.
D The roots move downwards.

4.2 Photosynthesis

5. Diagram 3 shows an investigation. Both
plants are placed under the sunlight.
Diagram 1 Plant A is unable to carry out the

Why does this situation happen? photosynthesis process compared with
A Plant responds to water. plant B.
B Plant responds to gravitational pull.
C Plant responds to touch.
D Plant responds to light.

2. Why does the root of the plant responds A B
to water and gravitational pull? Potassium
hydroxide
A Enables the plant to survive
B Enables the plant to get light and air Diagram 3
C Enables the plant to be firm on the soil Which of the following is needed by
D Enables the plant to be stationary plant A to carry out the photosynthesis
process?
3. What part of the plant responds to gravity? A Sunlight
A Shoot B Carbon dioxide
B Seeds C Water
C Stem D Chlorophyll
D Root
6. Plants make their own food. What is this
4. Diagram 2 shows a research to investigate process known as?
plant responses to stimuli.
A Growth process
B Pollination process
C Photosynthesis process
D Germination process
Root Pin Seed

Diagram 2



27 © Penerbitan Pelangi Sdn. Bhd.






Practice 4.indd 27 27/09/2022 1:54 PM

Science Year 4 Practice 4 Plants

7. Which of the following stages shows the 11. Diagram 3 shows a situation.
start of a photosynthesis process?
HOTS Analysing Light energy
A C Y




X
B D


Water


8. Danish observes a flower plant that he Diagram 4
has planted in his garden. He notices the Which of the following represents X and
leaves of the plant turning yellow and one Y ?
of the leaves falling to the ground. What
should he do? HOTS Applying X Y
A Water the flower plant
B Cut off the shoot of the flower plant A Helium Nitrogen
C Remove the yellow leaves
D Place the flower plant inside his house B Nitrogen Helium
9. What should be absorbed by the C Carbon dioxide Oxygen
chlorophyll during photosynthesis?
A Water D Oxygen Carbon dioxide
B Sunlight
C Mineral salts 12. Why is it that plants need not move to
D Carbon dioxide
other places to get food?
10. The following shows what is needed A The resources needed by plants are
for photosynthesis and the products of found around them.
photosynthesis. B The resources that are gathered
cannot be absorbed directly from their
Sunlight place.
Carbon dioxide X
+ Chlorophyll + C Limited resources is the reason for

Water Oxygen plants not moving around.
D Plants can survive in all condition of

Which part of the plant is X kept temporarily environment.
before it is sent to the other parts of the
plant?
A Leave C Root
B Fruit D Stem





© Penerbitan Pelangi Sdn. Bhd. 28






Practice 4.indd 28 27/09/2022 1:54 PM

Science Year 4 Practice 4 Plants


Subjective Questions

1. Diagram 1 shows Azalina’s rose plant placed on her study table. The rose looks withered and
CS 4.1 the leaves are yellow.
CS 4.2





Rose plant











Diagram 1

(a) What inference can be made on the condition of Azalina’s rose plant?






(b) Predict what would happen if the rose plant is given the appropriate fertiliser.

Put a (✓) at the correct answer.

Continues to whither


Remains the same


Becomes healthier


(c) What action should be taken by Azalina to restore the condition of her flower plant.
Explain. HOTS Applying







(d) What action should be taken by Azalina to ensure that the rose plant remains fresh and
flowering? HOTS Applying








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Practice 4.indd 29 27/09/2022 1:54 PM

Science Year 4 Practice 4 Plants

2. An investigation is carried out by a group of pupils on two similar plants. The observation on
CS 4.1 this plant is made.
CS 4.2
Table 1
Plant Condition of plant


A • The leaves are greener in
colour
• More leaves
• More roots


B • The leaves are green in
colour
• Fewer leaves A B
• Lesser roots Diagram 2

(a) Write one observation and inference based on the results in Table 1.

Observation:


Inference:


(b) What parts of the plants are involved in responses to stimuli?





(c) Give a hypothesis for this investigation.








(d) Why do plants need to respond to stimuli?





(e) State four needs of plants to carry out the photosynthesis process.





Gamified
Quiz 2






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Practice 4.indd 30 27/09/2022 1:54 PM

ANSWERS





Practice Practice
1 Scientific Skills 2 Humans

1.1 Scientific Process Skills 2.1 Human Breathing Process
A 1. (a) Sense of sight A 1. Nose
(b) Sense of hearing 2. Trachea
(c) Sense of smell 3. Lungs
(d) Sense of taste Inhalation
(e) Sense of touch Exhalation
(f) Sense of hearing
B 1. (i) inhaling
2. (a) boils, does not boil (ii) moving upwards
(b) (i) The temperature of the water (iii) oxygen
(ii) manipulated 2. (i) exhaling
(c) higher (ii) moving downards
(d) boil
(iii) carbon dioxide
3.
C 1. Activity: Medium
Length Weight Volume Temperature Rate of breathing: Medium
2. Activity: Not strenuous
Rate of breathing: Low
3. Activity: Strenuous
(a) (b) (c) (d) Rate of breathing: High
100 ml 4. Activity: Medium
90
80
70 Rate of breathing: Medium
60
50 5. Activity: Not strenuous
40
30
20 Rate of breathing: Low
10
6. Activity: Strenuous
0
Rate of breathing: High
2.2 Excretion and Defecation
g cm ºC ml
A 1. (i) Urine
4. (a) Prediction (ii) Sweat
(b) Hypothesis (iii) Carbon dioxide, Water vapour
(c) Variable (iv) Faeces
(d) Inference 2. waste product, body
(e) Hypothesis 3. faeces, body
(f) Prediction 4. wastes, undigested
(g) Inference 5. produced, removes
6. Kidney stones
Summative Practice 1 2.3 Response towards Stimuli
A
Objective Questions
Involved
1. A 2. C 3. A 4. D 5. B Situation Stimuli Response
sensory organ
Subjective Questions 1. Bad smell from Nose Hand closes
1. (a) Presence of sunlight and water the rubbish bin the nose
(b) (i) P and R, Q and S 2. The sound of Ears Hands closes
(ii) P and S, Q and R construction work the ears
(c) Q because plant Q obtained sufficient sunlight and
water 3. The hot kettle Skin Hand is moved
2. (a) (ii) 3 away
(b) Decreases and increases 4. The sour taste of Tongue Scrunched up
(c) Puteri Islam the lemon face


A1 © Penerbitan Pelangi Sdn. Bhd.






Answers.indd 1 27/09/2022 2:04 PM

Science Year 4 Answers

B 1. Affects the function of sensory organs and the brain 4. Moist skin
2. Causes someone to be hallucinating, incapacitated or
addicted
3. Causes intoxication (drunkenness)


Summative Practice 2
B Lungs – Tortoise, frog, duck
Gills – Fish
Objective Questions Moist skin – Frog, snail, earthworm
Spiracle – Dragonfly, grasshopper
1. D 2. A 3. B 4. C 5. C
C 1. land, water
Subjective Questions 2. Moist skin and lungs
3. Gills
1. (a) J: Medium 4. water, water, land
K: Low
L: High
3.2 Vertebrates
(b)
J K L A Vertebrates – Sperm whale, tuna, seahorse, turtle, moray
eel
Invertebrates – Jellyfish, clam, starfish, octopus, crab
B (a) Amphibians – Y – (v)
Slow Jumping Running in (b) Bird – V – (iii)
walk jacks place (c) Fish – W – (ii)
(d) Reptiles – Z – (iv)
(c) 18 times (e) Mammals – X – (i)
2. (a) The hand is moved away quickly upon touching a C 1. J: Lungs
sharp object. K: Moist skin
(b) Skin L: Gills
(c) His hand will be wounded. 2. V
(d) – To prevent sensory organs from being wounded. 3. I : Amphibians
– The sensory organ can function properly. II : Fish
III : Bird
Practice IV : Reptiles
3 Animals V : Mammals
4. (a) V
3.1 Breathing Organ of Animals (b) II
(c) V
A 1. Lungs
Summative Practice 3

Objective Questions
1. B 2. A 3. B 4. D 5. C

Subjective Questions
2. Gills
1. (a) Vertebrates – Q, S
Invertebrates – P, R
(b) P – Spiracle
Q – Gills
R – Moist skin
S – Lungs
3. Spiracle (c) Q
2. (a) Mammals
(b) Give birth to live young
(c) Lungs
(d) How they move




© Penerbitan Pelangi Sdn. Bhd. A2






Answers.indd 2 27/09/2022 2:04 PM

Year
SYOK! 4 FRC324943 Makes Perfect! PELANGI
Practice
PELANGI
PRAKTIS KSSR SEMAKAN SYOK!




PBD SYOK! Praktis PBD



Subject
Subject YEAR SYOK! Praktis PBD PRAKTIS
1 2 3 4 5 6
SCIENCE Bahasa Melayu ✔ ✔ ✔ ✔ ✔ ✔ Year
Tatabahasa
✔
✔ ✔
Penulisan ✔ ✔ ✔ PBD
SYOK! Praktis PBD series features topical
practices to supplement the textbooks and the English ✔ ✔ ✔ ✔ ✔ ✔
Classroom Assessment (Pentaksiran Bilik Darjah or 4
PBD). Grammar ✔ ✔ ✔

These practices are useful as reinforcement and Writing ✔ ✔ ✔
enrichment materials, as well as formative assessments Matematik / ✔ ✔ ✔ ✔ ✔ ✔


to gauge pupils' learning. The concept of HOTS and Mathematics KSSR SEMAKAN
i-THINK are also incorporated in the practices to fulfi l Sains / ✔ ✔ ✔ ✔ ✔ ✔ SCIENCE
Based on the
Science
the latest requirements. Based on the
Sejarah ✔ ✔ ✔ Textbook and
Summative assessments are also provided to assess SCIENCE
pupils' overall achievement. This series is indeed the Pendidikan Islam ✔ ✔ ✔ ✔ ✔ ✔ DSKP
best choice to enhance teaching and learning in the
subject. Pelajaran Jawi ✔ ✔ ✔ ✔ ✔ ✔
Lee Sing Yin
Norhayati Mohamad Noh
© Penerbitan Pelangi Sdn. Bhd. 2023 Gamifi ed Quizzes
All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in Suwaibatullaslamiah Jalaludin
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