rivers

rivers

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Hydraulic action
The force of the water on the bed and banks of the river removes material.
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Abbrasion
Material carried by the river rubs against the bed and banks and wears them away.
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Attrition
The load that is carried by the river bumps together and wears down into smaller smoother pieces.
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Solution
some rock minerals dissolved in the river water (e.g calcium carbonate in limestone).
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Traction
Large boulders roll along the river bed
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Saltation
smaller pebbles are bounced along the river bed, picked up and the dropped as the flow of the river changes.
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Suspension
Finer sand and silt particles are carried along in the flow, giving the river a brown appearence.
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Solution
Minerals, such as limestone and chalk, are dissolved in the water and carried along in the flow, although they cannot be seen.
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Other cards in this set

Card 2

Front

Material carried by the river rubs against the bed and banks and wears them away.

Back

Abbrasion

Card 3

Front

The load that is carried by the river bumps together and wears down into smaller smoother pieces.

Back

Preview of the back of card 3

Card 4

Front

some rock minerals dissolved in the river water (e.g calcium carbonate in limestone).

Back

Preview of the back of card 4

Card 5

Front

Large boulders roll along the river bed

Back

Preview of the back of card 5
View more cards

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