Plate motion puzzle

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