the water cycle powerpoint
TRANSCRIPT
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The Water Cycle
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We reuse water everyday. It works as an endless cycle.
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The Earth is very limited in Fresh Water. We have to use and reuse what we have.
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Water can be found in 3 states.
• Liquid- water, streams, lakes
• Gas- evaporation, clouds, fog
• Solid- ice, glaciers
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{• Why do puddles
disappear on hot days?
• What is happening?
• Water is turning from a liquid to a gas!
EVAPORATION
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{ {
Oceans account for 80% of water that is evaporated.
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Precipitation• Process of when water in the
atmosphere falls to the earth’s surface.
Types of Precipitation?SNOW
RAIN
HAILSLEET
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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 attatch to
This process forms clouds!!!
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The water eventually has to come down
1)Water condenses onto tiny particles
2)Droplets collide and grow in size and weight
3)Enough collision occur to override the updraft speed
4)Droplets fall
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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.
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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
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Majority of water movement is contributed by the melting of snow caps
- Act as a natural resevior
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