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Science, Chapter 6, Unit B

Science, Chapter 6, Unit B. Lesson 1 Where is Earth’s water?. Water. Water covers ¾ of Earth’s surface 3 states Solid-ice Liquid-water Gas-water vapor. How many oceans are on earth?.

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Science, Chapter 6, Unit B

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  1. Science, Chapter 6, Unit B Lesson 1 Where is Earth’s water?

  2. Water • Water covers ¾ of Earth’s surface • 3 states • Solid-ice • Liquid-water • Gas-water vapor

  3. How many oceans are on earth? • Although the oceans of the earth are all connected and truly one "World Ocean," most often the world is divided into four major "oceans" - the Pacific Ocean, Atlantic Ocean, Arctic Ocean, and the Indian Ocean. • Some consider there to be five oceans - the fifth being an ocean surrounding Antarctica called the Antarctic Ocean or Southern Ocean.

  4. Salty Water • Ocean water is salty • Cannot drink • Sodium chloride (table salt) • Water is made up of • Hydrogen • Oxygen • H2O • Ocean Water Mixture of: • Water • Dissolved solids (rocks and soils)

  5. Fresh Water • Found in: • Rivers • Lakes • Polar ice caps • Glaciers • underground Most of Earth’s fresh water is found here

  6. Saltiness • Not the same in all oceans • Speed water turns to water vapor

  7. Saltier • Warm, dry areas • Turns water to water vapor rapidly • Less salty • Cool temperatures • Near North and South Poles • Turns water to water vapor slowly • Locations • near rivers • Heavy rainfall • melting ice Add fresh water to oceans, Makes ocean water less salty

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