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Water

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Water Water Presentation Transcript

  • WATER !
  • Water on Earth
    • All the water that is found on Earth forms the planet’s hydropshere.
    • The existence of water is one of the characteristics that makes Earth different from any other planet in the Solar System.
  • Types of Water
    • Salt Water
      • Found in the ocean and makes up 97% of the water in the planet.
    • Fresh Water
      • Found in rivers, lakes, etc.
      • Makes up the rest of the Earth´s water (3%).
  • Game Review !!!
    • What is the term/name for all the water found on Earth?
    • a.) Geosphere
    • b.) Atmosphere
    • c.) Hydrosphere
    • * Answer: C
    • What are the TWO types of water?
    • * Answer: Salt Water & Fresh Water
  • The Different States of Water: Liquid
    • Liquid
      • Found in the sea/ocean, rivers, lakes, & underground water currents
  • The Different States of Water: Solid
    • Solid
      • Also known as ice or snow.
      • Found in the North & South Pole as well as in mountain summits.
  • The Different States of Water: Gas
    • Gas
      • Also known as water vapor.
      • Found in the atmosphere (clouds, sky, etc.)
  • States of Water
  • Game Review !!!
    • Name the 3 states of matter from hot to cold.
    • * Answer: 1. Gas 2. Liquid 3. Solid
    • Where do you usually find the solid state of water?
    • * Answer: North & South Pole
      • What part of the mountain do you find solids?
    • *Answer: Mountain Summit
  • States of Matter: Evaporation
    • Water evaporates in the liquid state.
      • It becomes water vapor (gas) because of the heat of the sun.
        • Water vapor disperses in the air and combines with other gases.
  • States of Matter: Condensation
    • When water vapor goes all the way up into the atmosphere, it freezes and condenses.
      • It turns into small drops of water (liquid state) and forms the clouds in the sky.
  • Game Review !!!
    • Water evaporates in the _______ state but then turns into the _____ state because of the heat of the sun.
    • * Answer: Liquid; Gas
    • What is formed during the condensation state?
    • * Answer: Clouds
  • States of Matter: Precipitation
    • When the temperature is low, the clouds become solid.
      • The precipitation falls and forms snow and hail (solid state).
  • States of Matter: Melting
    • When the ice and snow, with the heat of the sun, melt and turn into the liquid state .
  • Water Cycle Melting
  • Game Review !!!
    • During which part of the water cycle do the clouds become solid ?
    • * Answer: Precipitation
      • Why do they become solid?
    • * Answer: The temperature is low.
      • What forms during this stage?
    • * Answer: Snow & Hail
    • Put in order the 5 steps of the Water Cycle.
    • * Answer: 1. Evaporation 2. Condensation 3. Precipitation 4. Melting 5. Cycle starts over.
  • Rivers !
  • Rivers !
    • Rivers are very important processes responsible for changing the surface of the planet.
      • Erosion
      • Transport of materials
      • Excavation of valleys
  • The Course of a River
    • http://www.youtube.com/watch?v=7q4YTpa3Bwg
    • “ Angel Falls, Venenzuela”
  • The Stages of a River
    • What is a river?
      • A natural stream of water that goes to either an ocean, lake, or another body of water.
    • A river typically goes through 3 distinct stages:
    • 1. Upper Course
    • 2. Middle Course
    • 3. Lower Course
  • Game Review !!!
    • What is a river?
    • * Answer: Natural stream of water that goes into an ocean, lake, or body of water.
  • The Upper Course !
    • Begins high up in the hills and mountains.
    • The flow is very fast at this point because the slope is very steep.
      • It has a lot of strength.
    • Transportation of materials (rocks, pebbles, etc.)
  • The Upper Course !
    • Erosion begins
      • Wearing away of land
      • Forms V-Shaped Valleys
    • http://www.bbc.co.uk/schools/riversandcoasts/rivers/change_river/pg_10_flash.shtml
  • Erosion forming a V-Shaped Valley.
  • The Middle Course !
    • Slope is not as steep, it is more horizontal.
    • Wider and deeper because of erosion.
    • Transportation of materials continues.
  • The Middle Course !
    • Amount of water increases.
    • Small rivers called tributaries form.
      • These are small rivers that flow into the main river.
  • The Lower Course !
    • By this stage, the river is very wide & deep.
    • Surrounding land is flat.
    • Water is slow.
  • The Lower Course !
    • River strays away into a U-shape .
      • This is where flooding (overflow of water) occurs.
      • A lot of towns and cities are close to this part of the river.
    • *How can this cause problems?
  • The Lower Course !
    • When the river comes to an end, it flows into the sea.
  • Game Review !!!
    • In order, name the three stages of a river.
    • * Answer: 1. Upper Course 2. Middle Course 3. Lower Course
    • During which course does the river flow the fastest?
    • * Answer: The Upper Course
    • During which course is the surrounding land flat?
    • * Answer: The Lower Course
  • Game Review !!!
    • Which course of the river is this picture?
    • * Answer: The Middle Course
      • What are the small rivers called?
    • * Answer: Tributaries