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The mixture of gases surrounding the earth

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is known as the atmosphere.

Front

Groundwater

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Water from precipitation that has soaked into the soil and rocks on the ground.

Front

water cycle

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the processes by which water on earth is recycled around the environment from rivers and oceans to clouds and back again.

Front

Evaporation

Back

The process by which water changes from a liquid to a gas or vapor.

Front

Condensation

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The process by which water vapor in the air is changed into liquid water, often forming clouds.

Front

Precipitation

Back

Any form of water - liquid or solid - falling from the sky, including rain, sleet, snow, and hail.