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10 Cards in this Set
- Front
- Back
headwater
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the begining of a river
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mouth
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where a river meets a ocean or lake
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source
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where a stream begins
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tributary
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a small stream that flows into a large stream or river
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watershed
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land that water flows across or through
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erosion
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when soil or rock is loosened by water. In steep areas, streams erode the bottom of the channel and make it deeper. In flatter areas, streams erode the sides making it wider. As water flow decreases, the size of the sediments it can carry decreases.
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runoff
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water that flows over the land, it is affected by the amnount of vegetation, steepness of the land and the intensity of the rain
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erosion and deposition
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two processes that change the shape of earth
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estuary
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where salt and freshwater mix
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2 ways people can harm the heath of the estuary
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building dams and pollution
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