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Across
  1. 4. The upper part of the mantle
  2. 7. The explanation of Earth's surface having many rigid plates
  3. 8. The outer part of the Earth, like the crust
  4. 9. When one tectonic plates slides under the other plate
  5. 12. The boundary where 2 or more plates collide
  6. 14. The stress that happens when two tectonic plates push toward each other, causing folding or faults
  7. 16. Divergent boundaries cause this
  8. 17. A theory of the super continent name Pangaea
  9. 18. Surface under the crust
  10. 19. Spreading Caused by divergent boundaries
  11. 20. The surface of the Earth
Down
  1. 1. Part of the core made of liquid
  2. 2. The center of the Earth
  3. 3. The part of the core that's solid
  4. 5. The San Andreas...
  5. 6. The description of the behavior of rocks under stress
  6. 10. Boundary When plates slide past each other
  7. 11. Proportions of different minerals and rock
  8. 13. Rock made up of the Earth's lithosphere
  9. 15. Coldest layer of the Earth's atmosphere