Mon Prof Augmenté
How a leaf makes food
Age 11 · Science
A green leaf catches sunlight and takes in water and carbon dioxide. It uses them to make sugar for the plant and lets oxygen out into the air.
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Age 11: open this week
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In the picture
- Water rising from the roots through the stem to the leaf
- Sunlight striking the leaf and giving it energy
- Carbon dioxide entering the leaf through tiny pores
- Chloroplasts in leaf cells making sugar and oxygen
Examples
- A houseplant on a sunny windowsill grows new leaves.
- A forest of trees fills the air with fresh oxygen on a bright day.
Key takeaways
- Plants make their own sugar using light, water and carbon dioxide.
- Photosynthesis gives off the oxygen that animals breathe.
Quiz: How a leaf makes food (Age 11)
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What does a plant use to make its own sugar?
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Which gas that animals breathe does a leaf give off during photosynthesis?
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How does carbon dioxide get into a leaf?
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