plate tectonics

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Across
  1. 6. moving away from each other.
  2. 7. the idea that backs up continental drift
  3. 10. bread with food in the center
  4. 11. the idea that continents drifted apart
Down
  1. 1. moving towards each other
  2. 2. two plates going in different directions
  3. 3. the person who first had the theory of plate tectonics
  4. 4. the largest rodent
  5. 5. a slimy cucumber
  6. 8. and oceanic plate that gets pushed under a continental plate
  7. 9. less dense stuff rises, more dense stuff falls
  8. 12. the weight/ mass of something