Floating Marsh Mats
Age 9 · Environmental Science
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 9In 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.
Quiz: Floating Marsh Mats (Age 9)
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What pushes the tangled mat of roots and soil up to the water’s surface?
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What is the floating mat mainly made of?
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What can grow on top of a floating marsh mat?
The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.
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