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| Form in cold places where more snow falls than melts. Heavy layers of snow become solid ice. EX. Ice sheets on Antarctica |
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| The underwater part is bigger than the part above water. Only about TEN percent is visible above water. |
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| Rainfall that flows over the ground surface. Affected by: flat/hilly land, nature of ground surface, rate of rainfall |
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| Occurs when rivers wear away rock and soil |
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| Water collects in hollows left by melting ice, water fills the crater of a volcano, a dam blocks the flow of a river |
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Ex. a green film of algae in a fish tank
Nutrients in a lake build up over time causing an increase in the growth of algae |
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| Seasonal change that refreshes the supply of nutrients throughout a lake |
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| Help control flooding by absorbing runoff from heavy rains. An area of land that is covered with a shallow layer of water during some or all of the year |
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| Materials that allow water to easily pass through them |
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| Found in the saturated zone. Can be obtained from drilling a well into an aquifer |
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| A crescent-shaped body of water next to a river. Formed when a river breaks through the ends of a meander |
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| Formed when fast moving water of a river hits slow moving water in a lake or ocean and ends up slowing suddenly. As it slows deposits of sediment build up and form a delta near the mouth of a river. |
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| A body of standing water that is deep enough that sunlight does not reach the bottom. |
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| A ridge of land that separates two water sheds |
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| The area of soil in which the pores are totally filled with water |
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| Top of the saturated zone |
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| where people can obtain ground water by drilling a well |
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| Occurs when rivers build up landforms such as deltas |
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| Form when the end of a glacier reaches the coast and breaks off |
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| A type of hot spring from which the water bursts periodically into the air |
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| Two types of freshwater wetlands: |
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| Ice sheets that spread over a large area of land |
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| Form in mountain valleys and look like thick rivers of ice sliding down into the valleys. |
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| Continental glaciers and valley glaciers |
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| Land area that provides water to a river system |
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| A cut off that may form an ox bow lake along side a river |
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| A lake that storres water for human use |
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| The many small streams that come together at the source of a river, fast moving,narrow and cold |
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| Dead leaves and other plant and animal material that adds to wetland waters |
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