tectonic plates

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Across
  1. 6. the type of boundary that happens whenever two plates come together and collide
  2. 8. their are 7 different __________ ______
  3. 11. the lower part of the mantle is one part of this
  4. 12. the crust and mantle are apart of this
  5. 16. the solid part of the core
  6. 17. the ring of fire was produced around a lost of these
  7. 20. The theory that Alfred Wegnerthought of
Down
  1. 1. the theory that Alfred Wegner
  2. 2. A boundary that plates are going away from eachother
  3. 3. the outermost layer of the earth
  4. 4. The ability to resist damage
  5. 5. the layer in between the crust and the core
  6. 7. the mantle is the
  7. 9. this is the type of boundary that creates faults
  8. 10. the theory that Harry Hess came up with
  9. 13. the two innermost layers of the earth
  10. 14. the squishing or pushing together something
  11. 15. the _______________ of something includes what it is made of
  12. 18. a crack in the earth
  13. 19. only completely liquid layer of the earth