plate tectonics

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Across
  1. 2. a sudden violent shaking of the ground
  2. 4. a chunk of crust that moves
  3. 6. crust
  4. 8. combinations close together
  5. 9. to be different
  6. 10. to change
Down
  1. 1. mountain that shoots lava
  2. 3. a long narrow ditch
  3. 5. ocean plate a thick rock that lies under the ocean floor
  4. 7. plates plate that is thicker and less dense