• If you are citizen of an European Union member nation, you may not use this service unless you are at least 16 years old.

  • Stop wasting time looking for files and revisions. Connect your Gmail, DriveDropbox, and Slack accounts and in less than 2 minutes, Dokkio will automatically organize all your file attachments. Learn more and claim your free account.



Page history last edited by Karla Vega 9 years, 8 months ago



     When water falls to Earth, it is called precipitation. Rain, snow, sleet, and hail are all forms of precipitation. For rain to fall, the water drops in a cloud must reach a certain size. as the tiny droplets of water in a cloud bumb into each other, they combine. When the drops are heavy enough, they fall as rain.




     If the air is very cold, water vapor in a cloud may freeze into tiny ice crystals called snow. All snowflakes have six sides, or points. If rains falls through a layer of very cold air before reaching the ground, the drops will freeze. They form pieces of ice called sleet. Sleet forms only in cold weather.




Comments (0)

You don't have permission to comment on this page.