Convection Currents

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Across
  1. 2. Day, What the Earth is called today.
  2. 4. The outermost layer.
  3. 6. The continenets ______ out over time.
  4. 8. What the Earth was called 225 million years ago.
  5. 9. climatology was one such _______.
Down
  1. 1. Where Alfred Wegner died.
  2. 3. What the Earth was called 150 million years ago.
  3. 5. Origin of Continents and Oceans, The name of the book Wegner published in 1912.
  4. 7. Wegner first got a doctorate in ______.
  5. 10. The densest layer of the Earth.