Plate tectonics

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Across
  1. 3. activity, when gas lava and ash are pushed out a mountain
  2. 5. moving toward the same place
  3. 6. a layer of the earth
  4. 8. boundary, a place where 2 plates meet
  5. 9. a deep indentation in the ocean floor
  6. 12. moving apart in different directions
Down
  1. 1. something that repeats
  2. 2. ocean ridge, the way an under water mountain was formed
  3. 4. hard solid rock on earth
  4. 5. inside of a diagram
  5. 7. to examine in detail
  6. 10. a shaking of earths surface
  7. 11. soft solid rock inside the earth