PLATE TECTONICS

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Across
  1. 4. Sea-floor________ creates new sea floor
  2. 5. Scientific explanation
  3. 8. Breaks in rocks
  4. 9. Outer earth layer
  5. 12. Drift that Broke Pangaea
  6. 13. Result of volcanism or tectonic force
  7. 16. Boundary type associated with earthquakes
  8. 18. Earth layer of solid slow-flowing rock
  9. 19. Boundary Type where plates move apart
  10. 20. Deepest trench
Down
  1. 1. Original large continent
  2. 2. One plate sinks below another
  3. 3. Proposed continental drift
  4. 6. Lava Mountain
  5. 7. Pangaea fragment
  6. 10. Earthquake measurer
  7. 11. Petrified remains
  8. 14. Boundary type where plates collide
  9. 15. Current explaining plate motion
  10. 17. Geological plate