Flashcards
Rivers Keywords
Flashcards do conjunto (18)
- 1Hydraulic ActionThe force of flowing water washes away any loose material on the bed and banks
- 2CorrasionStones carried by the river are washed into the bed and banks, wearing them away.
- 3Solution/corrosion (erosion)The slightly acidic river water dissolves rocks made of calcium carbonate
(CaCO3) - 4AttritionStones collide together and are broken down. They become smaller and rounder.
- 5ErosionThe wearing away of land.
Rivers can erode in 4 ways: Hydraulic action, corrasion, solution and attrition. - 6LoadThe material carried by a river. The load is transported in 4 ways: Traction, saltation, suspension and solution.
- 7TractionStones are rolled along the river bed by the force of the water.
- 8SaltationSmall stones are bounced along the river bed by the flowing water.
- 9SuspensionParticles of silt and clay float and are carried along in the flowing water.
- 10Solution (transport)Some minerals dissolve in water. Limestone, for example, slowly dissolves.
- 11DepositionIf a river slows down (steep land, less water) it has less energy to carry its load, so it is dropped. Rivers slow down and deposit material on the inside of meander bends, in shallow water and when they reach the sea.
- 12Drainage BasinAn area of land drained by a river and its tributaries.
- 13SourceMost rivers have their source in the mountains.
- 14WatershedAn area or ridge of land that separates waters flowing to different rivers, basins, or seas. Precipitation that falls within the watershed drains into the river system.
- 15TributaryA small river or stream flowing into a larger river. They join the river as it journeys towards the sea. They meet at the river's mouth.
- 16MouthThe end of the river where it empties into another body of water such as the sea.
- 17LandformsNatural landscape that exists because of water.
- 18Examples of landformsV-shaped valleys, waterfalls, meanders, oxbow lakes, floodplains.
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- GCSE Geography (Water and Rivers) FlashCards sobre Rivers Keywords, criado por Keera em 29-03-2014.
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