Ch 23 1 where is fresh water found

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Ch 23 1 where is fresh water found

  1. 1. Where is Fresh Water Found? 23.1 b Fresh Water
  2. 2. Fresh Water <ul><li>Fresh Water is relatively free of Minerals and Salts </li></ul><ul><li>Fresh water is found in place such as: </li></ul><ul><li>Atmosphere </li></ul><ul><li>Streams </li></ul><ul><li>Lakes & Rivers </li></ul><ul><li>Ground water (most) </li></ul><ul><li>Glaciers (most) </li></ul>
  3. 3. Atmosphere <ul><li>Water is in the form of Water Vapor </li></ul><ul><li>Gets there by evaporation </li></ul><ul><ul><li>Mostly the ocean </li></ul></ul><ul><li>Length of time = few hours or few days </li></ul>
  4. 4. Streams & Rivers <ul><li>Carry less water than in the atmosphere </li></ul><ul><li>Water shapes the land because of volume </li></ul><ul><li>Stream = any channel of flowing water </li></ul><ul><li>Runoff = any water that flows in Streams </li></ul><ul><li>Smaller steams = Tributaries </li></ul>
  5. 5. Ponds & Lakes <ul><li>A depression in the land </li></ul><ul><li>Ponds are smaller and shallower than lakes </li></ul><ul><li>Both drain into streams </li></ul>
  6. 6. Ground water <ul><li>¼ of all the water in the world </li></ul><ul><li>Water table top of a saturated zone = spongy ground that holds water. </li></ul><ul><li>Aquifer = Rock layer that is permeable to water </li></ul>sandstone aquifer
  7. 7. Glaciers & Icebergs <ul><li>Glaciers formed when there is more snow fall than melts each year. </li></ul><ul><li>The snow builds up & presses the layers. </li></ul><ul><li>Flow down hill when big & heavy enough </li></ul><ul><li>Iceberg is a broken part of Glacier </li></ul>

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