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Water cycle powerpoint Water cycle powerpoint Presentation Transcript

  • The Water Cycle
  • The Water Cycle consists of….
    • Evaporation/transpiration
    • Condensation
    • Precipitation
    • Run-off
  • We reuse water everyday. It works as an endless cycle.
  • The Earth is very limited in Fresh Water. We have to use and reuse what we have.
  • Water can be found in 3 states.
    • Liquid- water, streams, lakes
    • Gas- evaporation, clouds, fog
    • Solid- ice, glaciers
    • Why do puddles disappear on hot days?
    • What is happening?
    • Water is turning from a liquid to a gas!
    Evaporation
  • Transpiration
    Similar to evaporation, only water is evaporated off of the leaves of plants after it is absorbed through the roots
  • Oceans account for 80% of water that is evaporated.
  • What Happens Next?
    The process of condensation occurs
    • When the temp of the air is cold enough to change the water molecules from gas to a liquid
    • Water droplets form when small dust particles are present for the water to attach to
  • This process forms clouds!
  • The water eventually has to come down…
    Water condenses onto tiny particles
    Droplets collide and grow in size and weight
    Enough collision occur to override the updraft speed
    Droplets fall
  • Precipitation
    • Process of when water in the atmosphere falls to the earth’s surface.
    Types of Precipitation?
    SNOW
    HAIL
    SLEET
    RAIN
  • Water that falls as rain and snow infiltrates into the subsurface of soil and rock. Some stays in the the soil, some may enter a stream, and some may infiltrate deeper and recharge ground aquifers.
  • How do we use ground water?
    • Pump water out of wells
    • Create dams to channel water into aquifers
    • We depend on stored water for daily use
  • Majority of water movement is contributed by the melting of snow caps
    - Snow caps act as a natural reservoirs
  • We need fresh water to survive, so use it efficiently!
  • Citations
    • Baaker2009, River-Braan-Hermitage, May 20, 2010, Attribution license
    • Corey Leopold, The Rain, July 3, 2009, Attribution license
    • Beth Trittipo, Puddle After Rainstorm, September 30, 2006, Attribution license
    • John M. Evans, The Water Cycle, USGS
    • Mikeyskatie, Glacier Run off Near Paradise on Mt. Rainer, August 21, 2010, Attribution license
    • Evaporation, The Watershed Concept, Michigan National Education Curriculum
    • Eric Heath, Fog 09/27/2007 Morning, September 27, 2007, Attribution license
    • Laffy4k, Rainy Street, May 26, 2009, Attribution license
    • Joe Robertson, The Biggest Hail I’ve Ever Seen, June 16, 2008, Attribution license
    • Juliancolton2, Snowflakes, January 12, 2011, Attribution license
    • Jurgen, Mountain Snow Caps, May 18, 2006, Attribution license
    • "The Water Cycle: Infiltration." USGS Science for a Changing World. N.p., n.d. Web. 8 Feb. 2011. <http://ga.water.usgs.gov/edu/watercycleinfiltration.html>.
    • Science Bus. Home page. The Science Bus Experiment. Black Ridge Media, 2007. Web. 28 Feb. 2011. <http://www.sciencebus.co.uk/topics/states.html>.
    • Missouri Botanical Garden. "The Water Cycle Introduction." MGBnet. The Evergreen Project, 2005. Web. 28 Feb. 2011. <http://www.mbgnet.net/fresh/index.htm>.
    • Grant Montgomery, Ocean View, August 14, 2010, Attribution license