Water Cycle

Rain is part of the water cycle. In this continuos cycle, the sun heats water on the on earth. As the water heats up, the warmed liquid water evaporates, or changes to a gas called water vapor, and rises into the air.

High in the atmosphere; the water vapors cool off, slow down and begin to cling together, forming tiny droplets of water. These form clouds in the sky. Eventually, if enough droplets combined they become big drops to heavy to stay suspended in the air, and they fall as rain.