Plate Tectonics Puzzle

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Across
  1. 1. Plate in water
  2. 8. The innermost layer of the earth
  3. 9. The thinnest layer of the earth
  4. 10. The only liquid layer of the earth
  5. 12. The process of magma from the mantle rising up and becoming ocean crust (No spaces!)
  6. 16. Plate on land
  7. 18. Last name of the person who first brought up the continental drift theory
  8. 19. The type of plate boundary where the plates move apart
  9. 20. Pieces of the earth, seperated by cracks
Down
  1. 2. The theory in which the plates of the earth are slowly moving apart (No spaces!)
  2. 3. The thickest layer of the earth
  3. 4. The type of plate boundary where the plates move past each other
  4. 5. A deep underwater canyon in which the oceanic crust bends downward into (No spaces!)
  5. 6. A break in Earth's crust where rocks have slipped past each other
  6. 7. The type of plate boundary where the plates move toward each other
  7. 11. What forms when plates diverge on land (No spaces!)
  8. 13. The process of dense ocean crust falling under continental crust and into the mantle
  9. 14. A crack in the oceanic crust that new oceanic crust comes out of (No spaces!)
  10. 15. The ____ of the earth
  11. 17. First name of the person who first brought up the continental drift theory