7.11A Watersheds & Human Activity

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Aquifer

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An underground geological formation that captures, stores, and transports water that percolates through the soil.

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Chemical Fertilizer

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A human-made substance added to soil to help plants grow.

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Conservation

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The protection or reduced use of resources.

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Groundwater

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Water stored in the soil, between rocks, or in aquifers beneath Earth's surface.

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Percolate

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To trickle or pass through something porous, such as a filter, soil, or rocks.

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Pollution

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The contamination of the environment with harmful substances, including chemicals and particles.

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Preservation

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The act of protecting something valuable from loss, damage, or danger.

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Runoff

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Water that does not absorb into the ground, but flows over Earth's surface toward larger bodies of water.

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Surface Water

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Water that collects above ground, such as in rivers, streams, lakes, and ponds.

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Watershed

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An area of land that channels precipitation downhill to a particular body of water.