Plate Motion Crossword

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Across
  1. 2. a sudden shaking in earths surface
  2. 4. between two plates moving away from each other
  3. 6. theory that continents drift apart
  4. 8. the outside or top layer of something
  5. 13. piece of the lithosphere that moves on the asthenosphere
  6. 15. evidence of life from the past
  7. 16. how often or fast something happens
  8. 17. one of the very large sections of hard, solid rock that make up earths outer layer
  9. 18. layer between the crust and the core
  10. 19. outermost layer of earth
Down
  1. 1. liquid layer of earths core
  2. 3. a feature that forms on the surface of a planet
  3. 5. hot liquid rock
  4. 7. solid, dense center of the Earth
  5. 9. a break in the earths crust
  6. 10. boundary between two colliding plates
  7. 11. an extinct reptile that lived about 300 million years ago
  8. 12. to examine in detail for a purpose
  9. 14. a set of interacting parts forming a complex whole
  10. 17. something we observe to be simian are over and over again