5th Grade-Ch. 7 Lesson 2 Where is fresh water

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  • 1. Ch. 7 Lesson 2 Where is fresh water found?
  • 2. Activity-Water, Water Everywhere
    • http://www.srh.weather.gov/srh/jetstream/atmos/ll_water.htm
    • Demonstrates amounts of fresh water, salt water, frozen water, etc. on Earth
  • 3. Water Source Water volume (cubic miles) Percent of total water Oceans 317,000,000 97.24% Glaciers & icecaps 7,000,000 2.14% Groundwater 2,000,000 0.61% Fresh-water lakes 30,000 0.009% Inland seas 25,000 0.008% Soil moisture 16,000 0.005% Atmosphere 3,100 0.001% Rivers 300 0.0001% Total water volume 326,000,000 100%
  • 4. fresh water
    • drinking water
    • less dissolved salts than salt water
    • starts as rain or snow
  • 5. groundwater
    • rain or melted snow that soaks into ground
    • fills spaces between particles of rock & salt
    YouTube Groundwater Song
  • 6. aquifer
    • layer of rock & soil that groundwater occupies
  • 7. water table
    • Top level of groundwater in aquifer
    • Gets lower when people pump out water faster than it is replaced
  • 8. rivers
    • eventually flow  ocean
  • 9. watershed
    • area from which water drains into a river
  • 10. lakes
    • form when water collects in a low spot
  • 11. Video Clip-Lakes
  • 12. reservoir
    • artificial lake that forms behind a dam
  • 13.
    • 7/10 of Earth’s fresh water
    • much of Greenland & Antarctica
    • covered w/ huge ice sheets
    ice
  • 14. iceberg
    • forms when large pieces of ice breaks off a glacier or ice sheet
  • 15. Activity-Edible Aquifer