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8 Cards in this Set
- Front
- Back
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What is step 1? |
A meander starts as a slight bend. Water flows faster on the outside of the bend than on the inside. |
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What is step 2? |
So the outside of the bend is eroded away. Material is deposited on the inside of the bend. |
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What is step 3? |
This erosion and deposition turns the bend into a meander. |
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What is step 4? |
The meander bends more and more over the years until it becomes a really tight loop. |
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What is step 5? |
When the water level is really high, the river has enough energy to go straight across the loop, rather than round it. |
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What is step 6? |
This is called a meander cut-off. |
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What is step 7? |
The river keeps to its new channel, so the loop is left as an oxbow lake. |
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What is step 8? |
After a long time, the oxbow lake silts up and dries out, and plants grow in it. |
