Leaf Pores
Open to everyone until Thursday, October 1
To keep it, print it while it is open.
Leaves have tiny openings called pores. These openings open and close to let carbon dioxide in and oxygen out.
In the picture
- Pore opening: the gap between two curved cells.
- Guard cell: one of two curved cells that border the gap.
- Carbon dioxide molecule: a dark sphere joined to two red spheres.
- Oxygen molecule: two red spheres joined together.
Examples
- A geranium on a windowsill takes in carbon dioxide through its leaf pores.
- A maple tree in a park releases oxygen through its leaf pores.
Key takeaways
- Leaf pores can open and close.
- Carbon dioxide goes in, and oxygen goes out.
Carry on in the app
Three questions on this lesson, to check the idea stuck. Free in the app while the lesson is in the free week.
At least one new illustrated lesson every weekday for your child’s year, with its quiz and a reminder at 6:15 pm.
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