Marcus Earth Dynamic vocabulary test

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Across
  1. 2. when two plates move away from each other
  2. 5. when one plate slides over the other plate
  3. 6. The outside layer of the earth
  4. 8. The earth layers that are stack upon each other
  5. 10. When earth changes it magnetic field
  6. 11. very slowly moving plates of solid rock
  7. 14. It is more dense than Continental crust
  8. 21. A chain of island formed due to volcanos
  9. 27. This is created when two ocean plate are separated
  10. 28. a rock that is dark and fined
  11. 29. The bottom of the seafloor stretching out on both sides
Down
  1. 1. It is less dense than Oceanic crust
  2. 3. A shaking of the earth plates
  3. 4. When Oceanic and Continental plates collide
  4. 7. Hot melted rock
  5. 9. The section and pieces of the Earth crust
  6. 12. The third layer of earth atmosphere
  7. 13. When two plates slide past each other
  8. 15. This layer forms Earth's outer layer
  9. 16. created a theory on continental drift
  10. 17. This layer is below the Lithosphere
  11. 18. When one plate slides under the other plate
  12. 19. A bunch of volcanos in a curved line
  13. 20. A layer of hot rock
  14. 22. The inside layer of the earth
  15. 23. This is the Earth's magnetic polarity study
  16. 24. A device that is used to measure sound waves
  17. 25. A crack in the Earth's surface
  18. 26. When all the continents join together