Geological Time Scale

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Across
  1. 4. gives you the age of the fossil with the Law of Superposition
  2. 7. undisterbed old rock layers
  3. 8. the concept the older the stone the lower it is
Down
  1. 1. gives you the age in years
  2. 2. rate of radioactive decay
  3. 3. when a newer feature cuts into an older one
  4. 5. a fossil that is in multiple layers of rock
  5. 6. preserved organism or object.