Geological Time

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Across
  1. 3. Recognized to represent a period of time
  2. 7. The inlucions in a rock is the youngest or oldest
  3. 9. The top layer is the
  4. 10. The stacked layers in a sedimentary rock
Down
  1. 1. What is the rate of decay called
  2. 2. What is the name of cutting rock
  3. 4. fossils Where there is fossils in only one layer of rock
  4. 5. The cut through a rock is the yougest or oldest
  5. 6. The approximate age of a rock/fossil (youngest/oldest)
  6. 8. The oldest layer is in the