Describe the water cycle.
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What is heat from the Sun causes water on Earth (in oceans, lakes, etc.) to evaporate (turn from liquid into gas) and rise into the sky. This water vapor collects in the sky in the form of clouds. As water vapor in the clouds cools down it becomes water again (turn from gas to liquid), this process is called condensation. Water falls from the sky in the form of rain, snow, hail, or sleet, this process is called precipitation.