What the water cycle is
The water cycle is the path that water takes between Earth's surface and the air.
Water vapor: water as a gas. Water vapor is in the air, but you cannot see water vapor.
Watch water move through the cycle
Runoff: rain water that flows over the land into rivers, lakes, and the ocean.
Try it
Heat the water
- Move the slider to change the temperature of the water.
- Look at the water vapor that rises from the water.
- Look at the size of the cloud.
Evaporation:Medium
Quick check
Answer 5 questions. You see your score at the end.