Geologic Time Scale

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Across
  1. 2. has a fault line
  2. 5. helps find absolute age
  3. 6. a fossil that seperates two periods of time
  4. 9. exact age
  5. 10. an estimate of the age
Down
  1. 1. parts of a layer in another layer
  2. 3. radioactive decay over ____ time
  3. 4. preserved living beings
  4. 7. a line that messes up the law of superposition
  5. 8. a time period with specific fossils