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