Tectonic plates

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Across
  1. 5. a scientist that studies rock and earth's crust
  2. 8. The name of the scientist that developed the theory of continental drift
  3. 11. the theory that the continents drift apart
  4. 12. when 2 plates move away from each other
  5. 14. a natural force on earth that holds plates together
  6. 16. when plates move toward each other
  7. 18. the 2nd layer of earth
  8. 19. the remains of a prehistoric orgainsum that were presurved
Down
  1. 1. a break in the rock of earth's crust or mantle
  2. 2. the theory that the oldest rock is at the bottom and youngest on the top
  3. 3. when 2 plates slip past each other
  4. 4. a natural formation formed at convergent boundaries
  5. 6. the force that acts on rock to change it's shape or volume
  6. 7. a molten mixture of rock forming substances from the mantle
  7. 9. a structure that forms in earth's crust when magma reaches the earth's surface
  8. 10. An area of the mantle where hot rock rises upward
  9. 13. Most if not all the continent where conected and made a super continect
  10. 15. Earth's surface is broken up into more than a dozen distance plates
  11. 16. The type of thermal energy transfer that takes place in earth mantle
  12. 17. The shaking and trembling of a plate after it releases stress