2V-shaped valleysRivers work hard. They continually erode and move materials downstream.Running water has little power to wear away rocks.However, it pushes boulders, stones and rock particles along a river course.As it does so, the loose material scrapes the river bed and banks, and loosens other material.
3V-shaped valleyMush of what is worn away is then transported by the river and put down somewhere else. In this way rivers wear out and deepen valleys.
4V-shaped valley 1) river erodes downward. 2) the sides are cut down and attacked by weathering.3) the loosened material slowly creeps down the slope by gravity or is washed by rainwater.4) it results in a steep sided valley with the shape of a V.
5Features of a river valley Source – where a river startsSpurs – ridges of land around which a river winds.Valley sides – the slopes on either side of a riverV-shaped valley – the shape of a valley in its upper courseChannel – the course of a riverRiver banks – the sides of a river channelRiver bed – the bottom of a river channelLoad – Material that is carried or moved by a river