Geologic time scale

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Across
  1. 2. any feature that cuts through the ground is younger than everything it cut through.
  2. 4. when the highest layer is youngest and bottom layer is oldest.
  3. 6. estimate of a rocks age.
  4. 8. science that deals with earth's physical structure and substance.
  5. 9. bones buried in dirt.
  6. 10. Remains of plants/animals preserved in sediments.
Down
  1. 1. near exact age of a rock.
  2. 3. a lump of minerals.
  3. 5. a long period in time.
  4. 7. any material trapped inside a mineral as it forms.