Geologic Time

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Across
  1. 4. broken down pieces of rock that are moved from one place and settled in another
  2. 6. genetic information inside the cells that tell us what makes up a body
  3. 8. shows how organisms are related
  4. 12. layers of rock
  5. 13. structures in the body that related species got from a common ancestor
  6. 14. the shapes and arrangement of the bones in an organized pattern
  7. 15. study of strata to determine the history of something
Down
  1. 1. a species that passed down DNA and traits to many different species
  2. 2. fossils that help determine the age of rocks
  3. 3. rocks made of loose, eroded particles than harden over time
  4. 5. imprints of what an organism looks like, that is fossilized in rock
  5. 7. says that a layer of rock is younger than the layer under it
  6. 9. the purpose of something and how something works
  7. 10. fossils that show the link between past and present organisms, they have traits from both species
  8. 11. naturally preserved remains or impressions of organisms