Plate motion

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Across
  1. 5. an extinct reptile
  2. 7. a feature that forms on the surface of a planet
  3. 9. boundary the place where two plates meet
  4. 11. something we observe to be similar
  5. 12. moving toward each other
  6. 13. layer Earths layer of hard solid rock
  7. 15. the layer of soft solid rock
  8. 16. the outside layer of something
  9. 17. the sudden pushing of something
  10. 18. natural spring
Down
  1. 1. inside of an object
  2. 2. an object, diagram, or computer program that helps us understand something
  3. 3. evidence from the past
  4. 4. any of earth’s continuous areas of land
  5. 5. Hot liquid rock
  6. 6. underwater mountain range
  7. 8. moving away from each other
  8. 10. shaking of earths surface
  9. 11. large section of hard solid rock
  10. 14. how often or fast something happens
  11. 19. the slow pulling apart of land