Geography River Terminology

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Infiltration
When water hits the soil and soaks in
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Percolation
When water soaks into the rock after infiltrating through the soil
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Throughflow
When water is not intercepted but falls straight to the ground and soaks in
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Percipitation
Water falls from the sky as rain, sleet or snow
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Interception
When a plant catches water by its leaves which can be absorbed through the roots
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Surface Runoff
When water flows on the ground downhill
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Transpiration
The plant sweats water and moisture
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Ground water Flow
The movement of water through soil and rock underground
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Irrigation
Water is taken from rivers and lakes to help water plants and crops
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Abrasion
Rock fragments carried by a rvier erode the river's bed and walls
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Attrition
Transported particles of rock become rounded and smaller by being knocked against one another
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Evopotranspiration
Combined loss of water by evaporation and transpiration
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Evaporation
When a liquid becomes water vapour
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Discharge
The volume of water passing a certain point per unit of time
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Saltation
Material that is too heavy to be carried in suspension is transported by bouncing along the river bed
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Suspension
Small sized materials, such as clay and silt are suspended in the turbulent flow of the river
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Hydrograph
Graph showing gow the dischage of a river varies with time
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Hydraulic Action
The pressure of the water causes the river banks to erode, particularly on the outer curve of meanders and at waterfalls
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Traction
Large sized materials are transported by rolling or sliding along the river bed
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Other cards in this set

Card 2

Front

When water soaks into the rock after infiltrating through the soil

Back

Percolation

Card 3

Front

When water is not intercepted but falls straight to the ground and soaks in

Back

Preview of the back of card 3

Card 4

Front

Water falls from the sky as rain, sleet or snow

Back

Preview of the back of card 4

Card 5

Front

When a plant catches water by its leaves which can be absorbed through the roots

Back

Preview of the back of card 5
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