Geography- rivers and coasts

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Infiltration
When water soaks into the soil (infiltrates).
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Percolation
When water moves vertically down through soil and rocks (perks of rocks and soil).
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Throughflow
Water flows downhill through soil.
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Groundwater flow
Water flows downhill through rocks.
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Surface run off
Water flows overground.
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Transpiration
Evaporation of water from plants.
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Drainage basin
Area of land drained by a river.
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Tributuary
When a small river jons a main river. (paying tribute to the more superior river)
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Confluence
Where two rivers join. (conference, people meeting)
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The river mouth
Where river flows into the sea.
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3 ways that rocks are broken down.
Mechanical, chemical and biological.
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What is freeze-thaw weathering?
When the temperature alternates above and below 0 and water gets into the cracks, when it freezes the rock expands and the pressure is released from the rock.
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Hydraulic action
When the force of the water breaks rock particles away.
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Abrasion
Eroded rocks scraping against the channel and wearing it away.
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Attrition
Pebbles and rocks colliding together and reducing the size of each other.
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Solution
Chemical reaction when acid water dissolves rocks such as limestone.
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Name the four processes of transportation
Suspension, solution, traction and saltation.
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Solution
Soluble materials that are dissolved and carried in the water.
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Suspension
Small particles that float on top of the water.
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Saltation
Pebble-sized particles are bounced along the river by the force of the water.
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Traction
Large particlees like boulders pushed along the river bed by the force of the water.
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Deposition
When the river drops the eroded material it is transporting.
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Other cards in this set

Card 2

Front

When water moves vertically down through soil and rocks (perks of rocks and soil).

Back

Percolation

Card 3

Front

Water flows downhill through soil.

Back

Preview of the back of card 3

Card 4

Front

Water flows downhill through rocks.

Back

Preview of the back of card 4

Card 5

Front

Water flows overground.

Back

Preview of the back of card 5
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