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  • 1. Continental Drift Theory Alex Plaskett
  • 2. Alfred Wegener
    • November 1, 1880 Berlin
    • Noted for his continental drift theory
    • He was a German scientist
    • He went to university of Berlin
    • He trained as an astronomer
  • 3. Continental Drift Theory
    • The Continental Drift Theory is when thr earths plates move a Continent. They also found the same false in south America as they did in Africa.
  • 4. Continental Drift Theory Evidence
    • They also found the same fossil in south America as they did in Africa.
    • The shapes of the continents fit together like a jig saw puzzle.
    • The climate was the same when it was pangaea.
  • 5. Harry Hess
    • May 24, 1906
    • Considered one of the founding father of the unifying theory
    • He is best known for his theories on sea floor spreading.
    • Hess entered Yale university
    • August 25 , 1969
  • 6. Sea Floor Spreading
    • Sea Floor Spreading is when the sea floor is speeding because lava is commming from the core to the sea floor
  • 7. Continental Drift Theory
    • The Continental Drift Theory is when thr earths plates move a Continent. They also found the same false in south America as they did in Africa.
  • 8. Sea Floor Spreading Evidence
    • Lava is coming up from the center of the earth.
    • The plates are moving.
    • The lava pushes the sea floor apart.
  • 9. Other Definitions
    • Subduction- the proces of witch the ocean floor sinks.
    • Mid-Ocean Ridge-the longest chain of mountains in the world.
    • Sonar-a device that bounces sound waves off underwater objects.