Env Sci NR (2) CSA

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Freshwater

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Water without significant salt content; found in rivers, lakes, and groundwater.

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Surface Water

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Water located on Earth's surface, such as in rivers, lakes, and reservoirs.

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Runoff

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Water from precipitation that flows over land and collects in rivers and streams.

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River System

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A network of rivers and streams that drain a watershed.

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Watershed

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The land area that channels water to a river system.

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Groundwater

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Water stored underground in soil and rock layers.

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Permeable

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Materials that allow water to pass through, like gravel or sand.

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Impermeable

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Materials that do not allow water to pass, like clay or rock.

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Aquifer

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An underground layer of permeable rock or sediment that holds water.

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Water Table

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The upper level of an aquifer where the ground is saturated with water.