WebQuest
What do you know about water?
Introduction
The Water Cycle is the process by which water moves constantly. Heat is the key this process. Water changes it's form when heated or cooled. When heated water turns into vapor or steam. When cooled it turns into liquid, such as rain water or solid such as snow.
The Water Cycle is made up of three main parts:
*Evaporation
*Condensation
*Precipitation
Evaporation is when the sun heats up water in rivers, lakes or the ocean and turns it into vapor or stream. The water vapor or steam leaves the river, lake or ocean and goes into the air.
Transpiration is the process by which plants lose water out of thier leaves. Transpiration helps evaporation in getting water vapor back up into the air.
Water vapor in the air gets cold and changes back into liquid, forming clouds.
Condensation is the opposite of evaporation.
Have you ever seen water on the outside of a glass of liquid?? The water did not leak through the glass; it actually came from the air. Water vapor in the warm air, turns back into liquid when it touches the cold glass.
Preciptation occurs when so much water has condensed that the air cannot hold it anymore. The clouds get heavy and water falls back to the earth in the form of rain, hail, sleet, dew, mist, fog, or snow depending on the tempertature of the atomosphere.
Pollution is a change in the quality of water that makes it unsuitable for certain uses.
Animal wates, septic tanks, and landfills are all sources of ground water contamination.
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