Plants & light
Plants & light
- Unit 1: Living things
- Unit 2: Sound
- Unit 3: Materials in my world
- Unit 4: The Earth
- Unit 5: Humans
- Unit 6: Forces
We are going to:
• find out if plants need light.
• do an investigation and say what we think will happen.
Getting started
Where do you see plants?
Do you have plants at home? Tell a friend where you keep plants at home.
Words: answer, asks, grow, investigation, light, question.
Here are some young plants. When plants get bigger we say they grow.
Activity
What do plants need to grow?
What do you think plants need to grow?
Talk with a friend. What do they think plants need?
Do plants need food and water like people?
Write or draw what you think plants need.
Marcus asks a question: “Why is this plant bent?”
Here is the answer: “It is growing towards the light.”
Think like a scientist
What happens to a plant with no light?
You will need: two plants, a box.
Marcus wants to answer this question: “What will happen to a plant with no light?” He covers one plant with a box. He puts the other plant in the light. Say or draw what you think will happen. Try this investigation yourself to find out the answer.
How am I doing?
What places would be too dark for plants to grow? Talk about your ideas or draw them.
Look at this cave. Why are no plants growing inside? Plants use light to make food. Plants can’t grow in the cave because there is no light.
Look what I can do!
• I can say what will happen to a plant with no light.
• I can say what I think will happen in an investigation.
Question
1) Getting started
a) Where do you see plants?
b) Do you have plants at home? Where do you keep them?
2) Activity
a) What do plants need to grow?
b) Do plants need food and water like people?
c) Write or draw what you think plants need.
3) Investigation
a) What will happen to a plant with no light?
b) Set up two plants; cover one with a box and put the other in the light. Predict and then observe.
4) Reflection
a) What places are too dark for plants to grow?
b) Why are no plants growing inside the cave?