Mon Prof Augmenté
Floating Marsh Mats
Under the water, dead plants slowly rot and make gas bubbles. The bubbles push a tangled mat of roots and soil upward until it floats at the surface.
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Age 9: open this week
Browse Age 9
In the picture
- Badge 1 marks gas bubbles rising from rotting plants under the water.
- Badge 2 marks the thick mat of roots and soil floating at the waterline.
- Badge 3 marks green plants and lily pads growing on top of the mat.
Examples
- A boggy pond where a grassy patch can be pushed down and springs back up.
- A floating garden made of roots and soil in a calm wetland.
Key takeaways
- Rotting plants release gas that can lift roots and soil.
- A floating marsh mat can carry plants on top while water moves underneath.
Carry on in the app
Three questions on this lesson. It has left the free week, so its quiz is for subscribers.
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