15[1].1 Lecture
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15[1].1 Lecture

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15[1].1 Lecture 15[1].1 Lecture Presentation Transcript

  • 15.1 Physical Oceanography Pages 384 - 391
  • Goal 1 Explain how oceans originated
    • Water from space…
      • Comets
        • Water released on collision
    • Water from space…
      • Meteorite evidence
        • Contain 0.5% water
        • Same as earth
  •  
    • Water from volcanoes…
      • Volcanic gas mostly CO 2 and H 2 O
  • Goal 2 Discuss the distribution of Earth’s water
    • Globe activity
    • Which hemisphere appears to have more water?
    • 71% surface area of Earth is ocean
      • Mostly in southern hemisphere
    • 3800 m = average depth
    • Globe activity
    • What percent of the Earth’s equator is ocean water, what percent is land?
    • Earth’s water
      • Oceans = 97%
      • Ice caps = 3%
    • Globe activity
    • Can you travel through every ocean without leaving water?
  •  
    • Major oceans
      • Pacific
      • Atlantic
      • Indian
      • Arctic
      • Antarctic
    • Globe activity
    • Find all 5 oceans
    • Seas
      • Smaller
      • Partly / mostly landlocked
      • Mediterranean Sea
      • Carribean Sea
      • Bering Sea
    • Globe activity
    • Find more than 5 seas
    • Sea Ice
      • Ice floats
      • Seasonal
    • Question 1
    • Why does ice float if we learned that when a substance is cold, it is denser and sinks in relationship to its warmer counterpart?
  •  
    • Question 2
    • Contrast what is happening to the ice cap in the Arctic and the ice cap in the Antarctic during the month of December. Do the same thing for the month of June.
  •