11 terms

RIVERs

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Terms in this set (...)

River
A large stream
Erosion
Wearing away of their load AND the bed and banks of the river channel.
Transportation
Rivers moving material (load) down stream from its source to its mouth.
Abrasion
Fine material rubs against the river bank. The bank is worn away, by a sort of sandpapering action.
Attrition
Where material is moved along the bed of a river, collides with other material, and breaks up into smaller and smaller pieces.
Solution/Corrosion
Some rocks forming the banks and bed of a river are dissolved by acids in the water
Hydraulic action
The sheer force of water hitting the banks of the river.
Traction
Where large rocks and boulders are rolled along the river bed.
Saltation
Where smaller stones are bounced along the river bed in a leap frogging motion
Suspension
Where very small grains of sand or silt are carried along with the water
Solution
Where some material is dissolved (like sugar in a cup of tea) and is carried downstream.

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