mountains

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Across
  1. 4. melted rock
  2. 7. plates shift
  3. 8. the center of the earth
  4. 9. fine rocks
  5. 11. the high heat turning rock to liquid
  6. 14. the earlier part of the precambrian
  7. 16. layer of rock
  8. 17. breaking down the crust
  9. 19. the changing of the eon
  10. 20. later part of the precambrian era
Down
  1. 1. rock that changes
  2. 2. when the crust wasn't solid
  3. 3. lava flow spouts
  4. 5. an organism turned to rock by pressure
  5. 6. for
  6. 10. hot melted rock
  7. 11. between the crust and the core
  8. 12. a rock formed by magma
  9. 13. the earth's surface
  10. 15. middle of the eath
  11. 16. a rock formed from sediments
  12. 18. a break in the crust