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, involving processes like 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 by which water changes from a liquid to a gas, usually due to heat from the Sun.

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NGSS.MS-ESS2-4

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What is condensation?

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Condensation is the process by which water vapor in the air cools and changes back into liquid water, forming clouds.

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NGSS.MS-ESS2-1

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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, including rain, snow, sleet, and hail.

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NGSS.MS-ESS2-4

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What role does the Sun play in the water cycle?

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The Sun provides the energy needed for evaporation, which is a key part of the water cycle.

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NGSS.MS-ESS2-4

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What is transpiration?

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Transpiration is the process by which plants release water vapor into the air from their leaves.

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How do clouds form?

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Clouds form when water vapor condenses into tiny droplets or ice crystals in the atmosphere.

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NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

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What happens during the process of precipitation?

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During precipitation, water droplets in clouds combine and grow heavy enough to fall to the ground.

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NGSS.MS-ESS2-1

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What is the difference between evaporation and transpiration?

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Evaporation is the process of water turning into vapor from surfaces like lakes and rivers, while transpiration is the release of water vapor from plants.

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NGSS.MS-ESS2-1

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What is the significance of the water cycle?

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The water cycle is essential for replenishing freshwater sources, supporting ecosystems, and regulating climate.

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NGSS.MS-ESS2-4