The Water Cycle
Evaporation is the process where water changes from a liquid to a gas. When water vapor (or droplets) come together in the sky, they form clouds.
Condensation is the process by which water changes from a gas to a solid or liquid.
Precipitation is the process by which the condensed water in the clouds returns to the earth. Depending on the temperature, precipitation can be as rain, snow, ice or hail.
Transpiration is the process by which living plants release water vapor into the atmosphere.
Percolation is the downward movement of water from the surface of the earth into below ground aquifers.
Water can exist as each of the three states of matter: liquid, solid, and gas
Liquid — the most common form of water. We see it as lakes, streams, and oceans and in the glasses of water we drink.
Solid — also known as ice. Snow and hail also make up the "frozen" or solid water.
Gas — called water vapor or steam.
Bibliography
http://www.njawwa.org/kidsweb/watercycle/watercycle.htm
http://library.thinkquest.org/C0126220/environment/photo/evaporation1.jpg
http://www.teignhousing.co.uk/images/img_condensation.jpg
http://www.kidsgeo.com/images/precipitation.jpg
http://www.savingwater.org/waterconnection/images/transpiration.jpg
http://www.apm-realty.com/7as-artesian/images/Percolation.jpg
http://imnh.isu.edu/Exhibits/Online/waterdiscoverybox/Images/WaterDrops.gif
http://www.kold-draft.com/wp-content/themes/kold-draft/images/single-cube.jpg
