Plate tectonicts

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Across
  1. 2. the outer most layer of the earth it's what we live on
  2. 6. a plastic like layer that is weak
  3. 7. the second layer of the earth and the biggest
  4. 8. what is made of basalt
  5. 9. a ridged layer made up of the uppermost mantel and crust
  6. 12. plates moving away
  7. 17. what happens when two plates collide
  8. 18. What continental plates are made of
  9. 19. breaks in the crust
  10. 20. the scientist that got the idea of continental dift
Down
  1. 1. the outer layer of the center of the earth
  2. 3. what can come from any plate boundary
  3. 4. what is made of granite
  4. 5. what happens when theres subduction
  5. 10. what happens when oceanic plates and continental plates collide
  6. 11. what oceanic plates are made of
  7. 13. What is the center of the earth
  8. 14. what happens when two plates slide past each other
  9. 15. a ring that is bordered with volcanos
  10. 16. what is a super continent called