River processes definitions Most of the definitions you need to know :) 0.0 / 5 ? GeographyWater and riversGCSEEdexcel Created by: Izzy MasonCreated on: 22-04-14 17:27 Source The start of a river 1 of 14 Mouth Where a river ends by the sea 2 of 14 Drainage basin Area of land drained by a river 3 of 14 Tributary A stream/small river that joins a larger one 4 of 14 Confluence The point where two rivers/streams meet 5 of 14 Erosion Wearing away of rock and soil 6 of 14 Hydraulic action The river hits the banks and the force causes cracks to form on the riverbed. Air gets trapped in these cracks and causes the banks to wear down. 7 of 14 Abrasion Rocks get carried along the riverbed and wear down the bed and banks 8 of 14 Attrition Rocks are carried by the river, smash together and break to be smaller and rounder 9 of 14 Solution Soluble particles dissolve 10 of 14 Traction Boulders and rocks are carried along the riverbed 11 of 14 Saltation Small pebbles bounce along the riverbed 12 of 14 Suspension Light material is carried in the water 13 of 14 Deposition When a river loses energy, it will deposit some of the stuff it is carrying 14 of 14
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