science

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Across
  1. 4. the middle layer of the earth
  2. 6. the objects of something
  3. 7. the theory that hary hess developed
  4. 13. plate spread apart
  5. 14. the there that alfred wvegner came up with
  6. 17. earth ___________ of many things
  7. 18. the outermost layer
  8. 19. when two plates slide past one another
Down
  1. 1. the layer that has the crust and upper mantle
  2. 2. the hardest part of the core
  3. 3. when two plates come together
  4. 5. innermost layer of the earth
  5. 8. a crack in the earth from a earthquake
  6. 9. zones where plates subduct
  7. 10. the layer that has the upper and lower parts of the core
  8. 11. the liquid part of the core
  9. 12. has most to all of the mantle
  10. 15. the many pieces of the earth
  11. 16. when something squeeze