Water cycle

Front

What is the water cycle?

Back

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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What is evaporation?

Back

Evaporation is the process by which liquid water is transformed into water vapor (gas) due to heat.

Front

What is condensation?

Back

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

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What is precipitation?

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

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What is the troposphere?

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The troposphere is the lowest layer of the atmosphere where we live, and where weather occurs.

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What is the stratosphere?

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The stratosphere is the layer of the atmosphere above the troposphere, which contains the ozone layer that protects us from harmful UV radiation.

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What is the mesosphere?

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The mesosphere is the layer of the atmosphere above the stratosphere, where temperatures decrease with altitude.

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What is the thermosphere?

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The thermosphere is the layer of the atmosphere above the mesosphere, characterized by very high temperatures and the presence of the ionosphere.

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What is the exosphere?

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The exosphere is the outermost layer of the atmosphere, where the atmosphere thins out and merges with outer space.

Front

What is the ozone layer?

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The ozone layer is a region in the stratosphere that contains a high concentration of ozone (O3) and protects the Earth from harmful ultraviolet (UV) radiation.