23-02-2013, 09:23 AM
Water
Water.ppt (Size: 1,010 KB / Downloads: 70)
Evaporation
Heat energy from the sun causes water in puddles, streams, rivers, seas or lakes to change from a liquid to a water vapor.
This is called evaporation.
The vapor rises into the air and collects in clouds.
Precipitation
Water falls to the earth from clouds. Mainly as rain, but sometimes as snow and hail.
This is called precipitation.
Transpiration
Transpiration is the process by which plants lose water out of their leaves.
Transpiration gives evaporation a bit of a hand in getting the water vapor back up into the air.