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MIDDLE SCHOOL

Earth and Space Science

Earth and Human Activity

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Earth and Human Activity: Earth’s Water Systems

The Water Cycle - I

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The Water Cycle - I

Water is always on the move, changing from one form to another and cycling through Earth’s systems. This process, called the water cycle, is powered by energy from the sun and the pull of gravity. Water evaporates from oceans, lakes, and rivers, turns into vapor, and rises i...

Transcript

Water constantly changes between liquid, gas, and solid forms, driving the water cycle and keeping water moving around Earth.

It all starts with evaporation. The Sun heats water in oceans, lakes, and rivers, turning it into water vapor.

But water doesn’t evaporate only from surfaces. Plants play a role, too, through a process called ...

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