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Published byAvis Rodgers Modified over 9 years ago
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The movement of water through a cycle by phase changes: liquid, gas, and solid water. Condensation- vapor cools and becomes liquid droplets Evaporation- liquid water changes into water vapor
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Water Cycle (cont.) Transpiration- plants releasing water vapor Precipitation- rain, snow, sleet, or hail fall from clouds Runoff- water collects on the ground and becomes rivers, streams, etc.
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Water Cycle
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Water on Earth 97.2% is saltwater 2.8% is freshwater
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Our Water 75% Del Valle 25% Ground water Where is our water from? How do we use our water? 80% Parks, Gardens, Agriculture 20% Drinking
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Water Shortage California is a desert, we will always need to conserve and recycle water. Growing population requires increased supply. California will run out of water in 2020 at current rates.
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Humidity The amount of water vapor in the air Air’s ability to hold moisture depends on temperature –Warmer air can hold more moisture Relative Humidity- a ratio of of how much water in air compared to the max it can contain
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A collection of millions of water droplets or ice crystals
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Puffy clouds with flat bottoms Form from warm air rising If they get very large that can produce thunder showers
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Cumulus Clouds
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Form in layers (strata), and cover large areas of the sky blocking out the sun
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Thin feathery white clouds that form at high altitudes
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Air Masses and Fronts A large body of air that influences weather Cold air masses- bring cold weather to U.S., form over Canada, the No. Pacific Ocean, and the No. Atlantic Ocean
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Warm Air Mass Develop over the Atlantic and Pacific oceans, the gulf of Mexico, and the desert region of Mexico.
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Fronts The boundary where two different air masses meet
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