5th grade ch. 7 lesson 2 where is fresh water
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Ch. 7 Lesson 2Ch. 7 Lesson 2Where is Where is
fresh water fresh water found?found?
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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
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Water Source Water volume(cubic miles)
Percent oftotal 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%
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fresh water• drinking water• less dissolved
salts than salt water
• starts as rain or snow
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groundwater• rain or melted
snow that soaks into ground
• fills spaces between particles of rock & salt
YouTube Groundwater Song
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aquifer• layer of rock & soil that
groundwater occupies
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water table• Top level of groundwater in aquifer• Gets lower when people pump out
water faster than it is replaced
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rivers• eventually flow ocean
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watershed• area from
which water drains into a river
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lakes• form when
water collects in a low spot
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Video Clip-Lakes
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reservoir• artificial lake that forms
behind a dam
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• 7/10 of Earth’s fresh water • much of Greenland & Antarctica covered w/ huge ice sheets
ice
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iceberg
• forms when large pieces of ice breaks off a glacier or ice sheet
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Activity-Edible Aquifer