Earth history vocab

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Across
  1. 2. when earth changes and moved to create land that was called
  2. 6. when some of the land or rock broke away from the rest of it
  3. 7. when lava has created a chamber for itself in the layers of the earth but is still in the ground
  4. 8. type of rock formed by magma that has cooled down
  5. 10. the difference between animals and humans is called
  6. 12. the remain of a prehistoric rock in the earth is a
  7. 14. a type of rock formed by accumulation of small particles
  8. 16. the theory of the earths movement
  9. 19. when lava has come up through the ground it is called
  10. 20. a geologic time subdivision is called the
  11. 21. a scientist that studies fossils is a
Down
  1. 1. the THEORY that organisms change over time is the
  2. 3. the law of ____ says oldest layer of earth on bottom
  3. 4. a chronological arrangement of geological events
  4. 5. the geologic age of a fossil in terms of events
  5. 9. long distinct period of time
  6. 11. an inherited genetic Change in population was called
  7. 13. the geologic age expressed in years is called
  8. 15. when an animal has adapted to the enviorment to survive
  9. 17. a fossil that can be used for dating is a
  10. 18. when a rocks appearance is changed by nature it is called