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The Water Cycle. http://ga.water.usgs.gov/edu/graphics/watercyclesummary.jpg. What is the Water Cycle?. Controls the distribution of Earth’s water Describes the continuous movement of water on, above and below the surface of the Earth Has no starting point Water is always changing states.
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The Water Cycle http://ga.water.usgs.gov/edu/graphics/watercyclesummary.jpg
What is the Water Cycle? • Controls the distribution of Earth’s water • Describes the continuous movement of water on, above and below the surface of the Earth • Has no starting point • Water is always changing states
Parts of the Water Cycle • Evaporation • Transpiration • Condensation • Precipitation • Infiltration • Surface Runoff • Groundwater • Absorption
Evaporation • Change from liquid to gas (vapor) • Includes vaporization from: • Water surfaces • Land surfaces • Snow fields http://www.kidzone.ws/water/
Transpiration • Water absorbed by plants is evaporated • Water is absorbed through roots • Evaporated from the plant surface (leaves) http://ga.water.usgs.gov/edu/pictures/wctranspirationleafsoil.jpg
Condensation • Change from gas to liquid • Opposite of evaporation • Example of condensation: • Cold glass, hot day http://farm1.static.flickr.com/215/521585824_54ed44d010_m.jpg
Precipitation • Any water falling to Earth’s surface • Examples: • Rain • Snow • Sleet • Hail • Dew • Frost http://farm5.static.flickr.com/4079/4872194918_3a1de0ba90_m.jpg
Infiltration • Ground water soaking into the soil • From the soil: • Soaked up by roots • Becomes ground water http://ga.water.usgs.gov/edu/pictures/wcinfiltration.jpg
Surface Runoff • Precipitation runoff over the landscape • Occurs when: • Water falling on ground > infiltration rate http://ga.water.usgs.gov/edu/pictures/wcrunoff.jpg
Groundwater • Water located below the ground’s surface • Consider this: • Digging in sand close to ocean • Water that appears is groundwater http://ga.water.usgs.gov/edu/pictures/wcgwstoragebeachlores.jpg
Absorption • Roots removing water from soil • Example: • Sponge and water http://farm4.static.flickr.com/3542/3282843423_5ed72e45ac_m.jpg