Plate things

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Across
  1. 5. Where two plates move parallel to each other
  2. 7. Where two plates pull away from each other
  3. 8. The theory that the sea is spreading outwards
  4. 9. The middle mantle
  5. 10. Transform boundaries cause this
  6. 11. When the less-dense plate goes underneath another plate recycling the rock.
  7. 13. What 2 Divergent continental plates cause
  8. 14. The crust and upper mantle
  9. 15. Happens in Convergent boundaries with one of them being an oceanic plate
Down
  1. 1. Where two plates collide with each other
  2. 2. The supercontinent 250 million years ago
  3. 3. The theory that the plates used to be a big continent
  4. 4. Where Sea floor spreading occurs
  5. 6. A mountain made when convergent boundaries collide
  6. 12. Land caused by Subduction in Ocean/Ocean convergent plates