Plate motion puzzle

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Across
  1. 2. A sudden shaking of Earths ground
  2. 5. The remains of a prehistoric organism
  3. 6. When two plates come together
  4. 9. An educated guess to something
  5. 10. A mountain or hill that produces lava
  6. 12. A diagram that show what the inside of something looks like
  7. 13. Largest body of water
  8. 15. Hot substance from a volcano
  9. 16. A scientist who named something Pangea
  10. 18. Deep sea canyon formed and a convergent boundary
  11. 22. How fast or often something happens
  12. 24. The process where one plate is forced underneath another
  13. 26. Rigid most outer layer of Earth
Down
  1. 1. A set of different parts forming a complex whole
  2. 3. Earths upper mantle layer below lithosphere
  3. 4. Moving apart in different directions
  4. 7. Evidence gathered over time by many scientists
  5. 8. Earths second layer
  6. 11. Something we observe over and over again
  7. 14. Where two plates slide
  8. 17. A break in the Earths crust
  9. 19. A ton of solid minerals millions of years old
  10. 20. Earths outer layer
  11. 21. Something that repeats in order
  12. 23. A diagram of sorts that helps us understand
  13. 25. Massive rigid slabs of rock