Plate Tectonics - First Block

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Across
  1. 2. one plate moves under the other
  2. 3. how thick a liquid is
  3. 6. crack in the plates
  4. 8. elevated region with a central valley on the ocean floor
  5. 9. depth of earthquake
  6. 10. the inside of the earth
  7. 11. a current in a fluid that results from convection
  8. 15. size of an earthquake
  9. 17. come apart
  10. 18. upper layer of the mantle below the lithosphere
  11. 20. upper mantle and the crust
Down
  1. 1. the middle of the earth
  2. 2. when 2 plates pass each other
  3. 4. super continent
  4. 5. when 2 plates collide the younger will rise over the other
  5. 7. one plate slides past another
  6. 12. linear shaped lowland between several mountians
  7. 13. one plate slips down relative to the other
  8. 14. one plate is moved upward to the other
  9. 16. boundary pull apart
  10. 19. ocean around the super continent