Water and Earth Science Terms

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Phytoplankton

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Tiny ocean organisms that carry on photosynthesis

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Aquifers

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Layers of sand, gravel, or bedrock that hold or move ground water

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Evaporation

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Water returns to the sky through transpiration

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Ground Water

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Water stored beneath the surface of the earth

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Hydrosphere

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All of the earth's water

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Condensation

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Happens when water vapor cools and changes into a liquid

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Sea Ice

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When ocean water freezes

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Precipitation

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Water falls to the earth

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Humidity

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Water vapor in the air

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Icebergs

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Floating pieces of glaciers, ice sheets, or ice shelves