Rivers mindmap
- Created by: Dan14_
- Created on: 10-02-20 18:04
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- Rivers
- Erosion
- Hydraulic action
- Definition: The force of water on the river bed and banks that removes material.
- Abrasion
- Definition: Material rubs against and wears away the bed and banks of the river
- Attrition
- Definition: The load carried in the river bumps into itself and breaks up creating small pebbles.
- Solution
- Definition: Slightly acidic water dissolves certain rock minerals.
- Hydraulic action
- Transport
- Traction
- Definition: Large boulders and rocks are rolled along the river bed
- Saltation
- Definition: Small pebbles and stones are bounced along the river bed
- Suspension
- Definition: Fine light material is carried along by the flow of the river.
- Solution
- Definition: Minerals are dissolved in the water by slightly acidic water.
- Traction
- Middle course
- Meanders, U shaped valley, deeper water, lateral erosion, gentler gradient, faster velocity, less steep
- Upper course
- Steep gradient, flows quickly, vertical erosion, v shaped valley
- Lower course
- Gentle gradient, high volume, slow speed, horizontal erosion
- 1. Watershed: area of a highland forming the edge of a river basin.
- 2.Source: where the river begins.
- 3.Mouth: Where a river meets the sea
- 4. Confluence the point at which two rivers meet
- 5.Tributary: a small river or stream that joins a larger river
- 6.Channel: this is where the river flows
- 7.Drainage basin: the area of land drained by a river and its tributaries.
- Erosion
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