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G Chapter 4

Water Erosion and Deposition pages 90 - 108

runoff Rainwater that doesn't soak into the ground or evaporate.
channel Groove created by water moving down the same path.
sheet erosion A type of surface water erosion caused y runoff that occurs when water flowing as sheets picks up sediments and carries them away.
drainage basin Land area from which a river or stream collects runoff.
meander Broad, c-shaped cure in a river or stream, formed by erosion of its outer bank.
groundwater Water that soaks into the ground and collects in pores and empty spaces and is an important source of drinking water.
permeable Describes soil and rock with connecting pores through which water can flow.
impermeable Describes materials that water cannot pass through.
aquifer Layer of permeable rock that allows water to flow through.
water table Upper surface of the zone of saturation; drops during a drought.
spring Forms when the water table meets Earth's surface; often found on hillsides and used as a freshwater source.
geyser Hot springs that erupt periodically and shoots water and steam into the air-for example, Old Faithful in Yellowstone National Park.
cave Underground opening that can form when acidic groundwater dissolves limestone.
Created by: tferraro