Lesson 2 of 16
What a leaf does with light
Show on a big screenTake light, air or water away from a green leaf. Does it still make food?
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The idea
A leaf needs sunlight, carbon dioxide, water and chlorophyll to make food. If one is missing, the leaf makes no food.
Chlorophyll is the green colour in a leaf. Photosynthesis is making food from carbon dioxide and water, using sunlight.
| Goes in | Comes out |
|---|---|
| Carbon dioxide + water | Glucose + oxygen |
Sunlight gives the energy. Chlorophyll catches the sunlight. Any green part can make food, not only leaves.
Step 1 of 2
- All four are there: light, air (carbon dioxide), water, green (chlorophyll). Food is made.
- Take light away. Nothing is made at all.
Try the lab to finish this lesson.