Water Cycle

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What is the water cycle?

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The water cycle is the continuous process by which water moves from the Earth's surface to the atmosphere and back again through evaporation, condensation, and precipitation.

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NGSS.MS-ESS2-4

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What is evaporation?

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Evaporation is the process where water changes from a liquid to a gas, usually when it is heated.

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NGSS.MS-ESS2-4

NGSS.MS-PS1-4

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What is condensation?

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Condensation is the process where water vapor cools and changes back into liquid water, forming droplets.

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NGSS.MS-ESS2-4

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What is precipitation?

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Precipitation is any form of water that falls from the atmosphere to the Earth's surface, such as rain, snow, sleet, or hail.

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NGSS.MS-ESS2-4

NGSS.MS-ESS2-5

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What is dew?

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Dew is water vapor that has condensed into tiny droplets on cool surfaces, like grass, during the night.

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NGSS.MS-PS1-4

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Where does the water in the air come from?

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The water in the air comes from evaporation of water from oceans, rivers, lakes, and other bodies of water.

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NGSS.MS-ESS2-4

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How does temperature affect evaporation?

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Evaporation happens faster on hot days because heat gives water molecules more energy to escape into the air.

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NGSS.MS-PS1-4

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What happens to water when it freezes?

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When water freezes, it changes from a liquid to a solid, forming ice.

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NGSS.MS-PS1-4

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What is the role of the sun in the water cycle?

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The sun provides the heat energy needed for evaporation to occur, driving the water cycle.

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NGSS.MS-ESS2-4

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What is water vapor?

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Water vapor is the gaseous state of water that is present in the air.

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NGSS.MS-ESS2-1

NGSS.MS-ESS2-4