PLAT TECTONICS

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Across
  1. 2. a break in the Earth's crust
  2. 3. plate piece of the lithosphere that moves on the asthenosphere
  3. 8. boundary boundary between two plates moving away from each other
  4. 10. core liquid layer of the Earth's core
  5. 12. boundary boundary between two plates that are sliding past each other
  6. 14. core solid, dense center of the Earth
  7. 15. drift theory that continents drift apart
  8. 17. outermost, rigid layer of the Earth
  9. 18. layer between the crust and the core
  10. 19. a squeezing force
  11. 20. outermost layer of the Earth
Down
  1. 1. prevailing weather conditions of a region
  2. 4. a pulling force
  3. 5. boundary boundary between two colliding plates
  4. 6. zone a region where a an oceanic plate sinks down into the athenosphere
  5. 7. soft layer of the mantle
  6. 9. the bending of rock layers
  7. 11. The person whos class this is
  8. 13. spreading new lithosphere is created here
  9. 16. tectonics the theory that Earth's outer shell is divided into several plates