Plate Tectonics

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Across
  1. 4. make of the crust and upper mantle
  2. 6. responsible for Earth's magnetic field
  3. 8. outermost compositional layer of the Earth
  4. 10. all of the water on Earth
  5. 12. boundary where plates move apart
  6. 13. the southernmost continent
  7. 14. boundary where plates come together
  8. 15. blanket of gases around the Earth
  9. 16. scientist who was ridiculed for Continental Drift Theory
Down
  1. 1. all life on Earth
  2. 2. 365 days
  3. 3. made of liquid iron and nickel
  4. 5. upper soft part of the mantle on which plates float
  5. 7. 24 hours
  6. 9. boundary where plates slide past one another
  7. 11. large supercontinent