Part s of Earth

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Across
  1. 4. Was Wegner's idea approved?
  2. 7. Smaller tectonic plates
  3. 11. Deepest trench
  4. 14. Discovered sea floor spreading
  5. 15. Rock found in oceanic crust
  6. 17. Main tectonic plates
  7. 19. Earths center layer
Down
  1. 1. Fault in California
  2. 2. Earths middle layer
  3. 3. Rock found in continental crust
  4. 5. Deepest part of the world
  5. 6. Proposed the idea of continental drift
  6. 8. Earths top layer
  7. 9. Plates that move apart
  8. 10. Super Continent
  9. 12. Lower Mantle
  10. 13. Length of marianas trench
  11. 16. total number of continents
  12. 18. Upper Mantle