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Earth the Water Planet - A Global Overview
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Earth the Water Planet - A Global Overview

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This presentation is an introduction to Earth's water resources. Geared for secondary students, the presentation covers percentages and sources of water on our planet. Also covers some human impacts …

This presentation is an introduction to Earth's water resources. Geared for secondary students, the presentation covers percentages and sources of water on our planet. Also covers some human impacts and population issues

Published in: Education

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Transcript

  • 1. Earth – The Water Planet Image: NASA jschmied©2008
  • 2. The Goldilocks Phenomena…. Not too… Scientifically this is a bad diagram… Why??
  • 3. Our planet without water The our planet is constantly changing
  • 4. Water covers about 75% of Earth’s surface. This makes Earth unique! http://veimages.gsfc.nasa.gov/7100/world.topo.bathy.200401.3x5400x2700.jpg jschmied©2015 Humans Thrive = 17% Grow crops = 4%
  • 5. Every landmass on our planet contains water. The physical properties of water make life possible. Image:http://www.tkg.tv/images/Another%20Blue%20Sky%20in%20Niagara%20Falls.jpg jschmied©2015 Insulation Moderation Transportation
  • 6. About 97.5% of Earth’s water is in the oceans & is salt water. Water-2-4Images: Corbis Where’s the other 2.5% the drinkable water?
  • 7. 68.6% of the remaining 2.5% is fresh water… Water-2-5Images: Martin Miller, Bruce Molnia …. stored in Glaciers. (melting) jschmied©2015
  • 8. http://blog.mlive.com/muskegon_chronicle_extra/large_groundwater%20art%20.jpg 30.1% of the fresh water is groundwater … in underground aquifers jschmied©2015
  • 9. .…Rivers Streams Marshes etc. 0.13% of all Fresh Water is in Lakes..… jschmied©2015
  • 10. … and 0.002 percent of Earth's fresh water is in the atmosphere. Image: Digital Stock jschmied©2015
  • 11. http://ga.water.usgs.gov/edu/earthwherewater.html
  • 12. How much water is available for humans and other animals? http://ga.water.usgs.gov/edu/earthwherewater.html
  • 13. Aral Sea
  • 14. Linked: Health, Wealth, Clean Water, &
  • 15. jschmied©2015 1900 = 1.6 B 1970 = 3.9 B 2015 = 7.2 B 2050 = >9.2 B
  • 16. More People… The Same Amount of Resources… Earth is a limited resource. Image: nasa