1. 13.3
V shape
As they grow they become U shaped
How do rivers begin?

2. Headward erosion
When land is worn away at the head of a stream or gully

3. Base level
A stream cannot erode any lower than the body of water into which it flows

4. Stream piracy
One stream or river takes over another

5. waterfalls
Lets talk about recession and undermining…

6. `

7. 13.4 Floodplains
Floodplain
FERTILE!
Where the river water goes when a river floods

8. meander

9. Oxbow lake

10. `
Natural levee

11. Floods
2 types…..
Flash flood
Large River Floods

15. Flood prevention and control