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Water Cycle Vocabulary Rusty Sturken Duluth Middle School Sixth Grade Earth Science Water Cycle • The continuous process by which water moves from Earth’s surface to the atmosphere and back, passing through the living and nonliving parts of the environment Water Cycle http://www.osovo.com/diagram/water_cycle.jpg Water Vapor (Water Vapor) • Water Vapor is the invisible, gaseous form of water. Water Vapor (Water Vapor) • Make sure you understand that fog and clouds are NOT water vapor, they are made of tiny droplets of condensed water. WATER VAPOR IS INVISIBLE Photos by Rusty Sturken Groundwater • Water that fills the cracks and pores in underground soil and rock layers Groundwater GROUNDWATER http://www.epa.gov/bioiweb1/images/hydrocyc.gif Evaporation • The process by which molecules at the surface of a liquid, such as water, absorb enough energy to change to a gaseous state, such as water vapor. Evaporation http://www.tapintoquality.com/facts/glossary/evaporation.jpg Transpiration • The process by which plants release water vapor through their leaves Transpiration http://techalive.mtu.edu/meec/module01/images/transpiration.jpg Condensation • The process by which a gas, such as water vapor, changes to a liquid, such as water Condensation http://www.dreamstime.com/blue-water-drops-condensation-thumb1809120.jpg Precipitation • Forms of water, such as rain, snow, sleet or hail that fall from clouds and reach Earth’s surface Precipitation http://www.fondriest.com/fileshare/subpages/science_library/precipitation.jpg Irrigation • The process of supplying water to areas of land to make them suitable for growing crops Irrigation http://www.marymount.fr/public/WaterDeficits/Irrigation_clip_image005.jpg Photosynthesis • The process by which plants use water, plus carbon dioxide and energy from the sun, to make food Photosynthesis http://grapevine.net.au/~grunwald/une/KLAs/science/irrigation-photosynthesis.gif Watershed • The land area that supplies water to a river system ( think of “drainage basin”) Watershed http://www.recycleworks.org/images/watershed_800.jpg Levee • A long ridge formed by deposits of sediments alongside a river channel Levee http://web.mst.edu/~rogersda/levees/press&siever13.13.png Reservoir • A natural or artificial lake that stores water for human use. Reservoir http://www.larryhotz.com/files/2009/05/reservoir2.gif Eutrophication • The process by which nutrients in a lake build up over time, causing an increase in the growth of algae Eutrophication http://www.lss-lab.bme.buaa.edu.cn/image/index%20of%20WWT_clip_image002.jpg Pores • Tiny openings in and between particles of rock and soil that may contain air or water Pores http://knol.google.com/k/-/-/3ar81gcwyc4cv/xamdic/5031273188662be420eb.jpg Permeable • Characteristic of materials such as sand and gravel that allow water to pass easily through them Permeable http://www.thomastrucking.com/images/Maryland%20Gravel.jpg Water Table • The top of the saturated zone, or depth to the groundwater in an aquifer Water Table http://www.groundwater.org/gi/images/groundwaterdiagram.jpg Saturated Zone http://www.ocrwm.doe.gov/curriculum/unit4/images/saturated-zone.jpg Saturated Zone • A layer of permeable rock or soil in which the cracks and pores are completely filled with water Aquifer • An underground layer of rock or soil that holds water Aquifer http://mtnwater.com/images/missoula_aquifer-450.gif Spring • A place where groundwater bubbles or flows out of cracks in the ground Spring http://www.advicesisters.net/uploaded_images/spring-713775.jpg Recharge • New water that enters an aquifer from the surface Recharge http://geopanorama.rncan.gc.ca/ottawa/images/biggroundwater.jpg Artesian Well • A well in which water rises because of pressure within the aquifer Artesian Well http://geology.com/articles/bottled-water/artesian-well.gif