Plate Tectonics by Vivian

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Across
  1. 3. The scientist that discovered plate tectonics
  2. 4. The amount of Earth's life
  3. 8. The most common event while transforming
  4. 10. Earth's crust is split into these
  5. 11. The theory that the plates are moving constantly
  6. 14. The most common event during convergence
  7. 16. The area in the crust and part of mantle
  8. 17. The inner-most layer of the earth
  9. 18. When one land mass goes under another
Down
  1. 1. A scientist that studies rocks
  2. 2. The layer between the crust and outer core
  3. 5. The type of current that cause plates to move
  4. 6. When two plates go away from each other
  5. 7. The second hottest layer of the earth
  6. 9. valleys The most common event during divergence
  7. 10. A large supercontinent that was around 280 mil. years ago
  8. 11. When two plates collide and form mountains
  9. 12. When two plates slide past each other
  10. 13. The outermost layer of the earth
  11. 15. Mountain ridges where new seafloor is created by seafloor spreading