Science yr 4 - Plant Response to stimuli 2

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Science Year 4

4.1 Plant respond to stimuli.

WTeitahchTeearcAhrefirfaAhrfifah

Sekolah Kebangsaan Tropicana

Do you remember all the
characteristics of living things?

1. Breathe Plants also a
2. Need food and water living things.
In this chapter,
3. Grow we will learn
4. Move how plants
5. Reproduce
move.
Teacher Arfifah Plants move by

growing and
responding
towards stimuli

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Shoots (pucuk) Venus flytrap
respond and grow
Leaves of SOME
towards light. PLANTS respond

Roots respond and to touch.
grow towards
water and Mimosa pudica

gravitational pull.

Teacher Arfifah

Sekolah Kebangsaan Tropicana

Plant respond to light

Which part of plant respond to light?
The shoots (pucuk) respond to light
How does the shoot respond to light?

Carry out a simple activity by referring to the
Science Text Book page 74

(Langkah-Langkah di muka surat 74 hanya
sebagai panduan)

Teacher Arfifah

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We are going to study how shoot responds to light.

We need:
1. Two Small plants
2. Two boxes (kotak kasut, atau yg sesuai)

Step 1 : Prepare set A and set B as picture below. Pastikan
tanah lembap.
Perhatikan apa yang berbeza antara set A dan set B.

AB

Pokok dukung anak
senang didapati.
Sering tumbuh di
laman atau pasu
bunga.

Teacher Arfifah

Sekolah Kebangsaan Tropicana

Step 2 : Place set A and set B at open area under sunlight.
Mesti letakkan di tempat yang ada cahaya matahari.
Contoh: tepi tingkap, kaki lima, halaman rumah

AB

Step 3 : Observe the growth/condition of shoot after 2 days
(Perhatikan pertumbuhan/keadaan pucuk selepas 2
hari.)

Teacher Arfifah

Sekolah Kebangsaan Tropicana

Science process skill
Let’s define (menentukan) variables.

constant variables responding variables
(perkara yang dimalarkan (perkara yang hendak
diperhatikan / diukur)
/ sama / tidak diubah
semasa ujikaji) Growth / condition of
shoot
- Place of investigation
- Type of plant

manipulated variables Pilih salah satu,
(perkara yang diubah- growth of shoot
ubah / berbeza semasa atau condition of

ujikaji) shoot

Hole position

Teacher Arfifah

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Answer the following questions (buat dalam buku tulis no 1)

1. What is the aim of the investigation?

2. Identify the variables: Rujuk format / bentuk
i. manipulated variable ayat untuk “aim of
ii. responding variable investigation”
iii. constant variable

3. Sketch the condition of shoot to show the direction
of its growth after 2 days.

Teacher Arfifah

Sekolah Kebangsaan Tropicana

Good luck! Continue learn
science at home.
Do not hesitate to

contact me at 012-
6103185 for any further

explanation.

Teacher Arfifah