Plate teconics

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Across
  1. 4. a hill or mountain that has magma in it
  2. 7. boundary two plates collide
  3. 12. land that has been elevated
  4. 13. the place we live
  5. 15. boundary where two plates slide past each other
  6. 16. plates portion of earths crust that lies beneath the oceans
  7. 17. ocean ridge an underwater mountain system
  8. 18. floor spreading process that occur at mid ocean ridges
Down
  1. 1. the second layer of the earth
  2. 2. drift alfred wegeners hypothesis that continents were on joined together
  3. 3. spot a place that is not at a plate boundary
  4. 5. plates portion of earths crust that lies above sea level
  5. 6. boundary two plates move away from each other
  6. 8. energy travelling as waves passing through earth
  7. 9. another word for lava
  8. 10. valley a valley created by divergent plates
  9. 11. of plate tectonics a theory that explains how the continents separated
  10. 14. a giant and dangerous wave
  11. 16. basin a geological basin found in the sea