Geologic Time Scale

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Across
  1. 5. the step in fossilization, where the remains are turned into rock.
  2. 6. ancient preserved remains of an animals body structure or behaviors.
  3. 9. rock type in which fossils are most commonly found.
  4. 10. when magma rises within the crust and solidifies, cutting between rock layers.
Down
  1. 1. Law that states that if a rock layer is found below another, then it must be older.
  2. 2. structure that is passed down from a common ancestor.
  3. 3. the step in fossilization, where the sediment surrounding the remains are turned into rock.
  4. 4. structure that looks similar, but is NOT from a common ancestor.
  5. 7. a sequence of DNA that codes for a trait.
  6. 8. for a fossil to be preserved, it must be _______ quickly.