PLANTS

SCIENCE YEAR 4 19th April 2020

INSTRUCTION: Write a note for topic PLANTS RESPONSE TO STIMULUS based on your
understanding and creativity in your science notebook or in a paper. You can refer textbook page
69-75. Please snap then submit your note in Whatsapp group.

UNIT 4: PLANTS
4.1 – PLANTS RESPONSE TO STIMULUS

a) Stimulus: 2. Water
1. Gravity 4. Touch
3. Light

b) Parts of plants that response to stimulus

NO STIMULUS OBSERVATION CONCLUSION
Roots of plant
1 GRAVITY Part of plant: Root, shoots, leaves respond to gravity

and stems

1. The root of the seedlings

moves towards gravity

2. Shoots, leaves and stems

move away from gravity

2 WATER Parts of plant: Root Roots of plant
1. The roots of the seedlings respond to water
move towards the wet
cotton

3 LIGHT Part of plant: Shoots, leaves and The shoots, leaves
stems and stems of the
plants respond to the
1. The shoots, leaves and sunlight
stems of the seedlings move
toward the holes in the box

4 TOUCH Parts of plant: Leaves The leaves of the

1. Mimosa leaves drop and fold plant respond to

when touched touch