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Running Water
| Topic | Material |
|---|---|
| Rivers and Valleys | The water flows in a channel in the bottom of the valley from the head to the mouth |
| Formation of Streams and Valleys 1 | 1. Surface runoff on a uniform slope produces sheet flow 2. Local irregularities cause erosion to produce rills. |
| Formation of Streams and Valleys 2 | 3. Rills concentrate flow into streams, and increased erosion causes them to form gullies, which further concentrate the flow becoming deeper, wider and extending headward. |
| Formation of Streams and Valleys 3 | Gullies connect to form a network w/ streams that get the flow from other streams enlarging faster to capture still more tributary streams. Valleys continue to get larger by deepening from the stream erosion & broadening by mass movement ofthe valley wall |
| Drainage Basins 1 | Well integrated stream systems efficiently drain the runoff from an area, the drainage basin or watershed. |
| Drainage Basins 2 | The drainage basin of each stream or stream system is defined by a line called the drainage divide that separates the area on which water flows down to one stream from the area on which it flows into a neighboring one along the highest point between them. |
Created by:
ebrinklow
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