Geological Time scales

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Across
  1. 3. a scientist that studies fossil remains found on Earth’s surface in order to study primitive life forms such as: plants, animals, fungi, and bacteria
  2. 6. Any rock or fragment that’s included inside of another rock is older than the rock in it is included
  3. 7. order of past events but not the absolute age.
  4. 9. most accurate dating
  5. 10. In an undisturbed sequence of rocks, the oldest rocks are on the bottom and the youngest rocks are at the top
Down
  1. 1. Any feature that cuts across a sequence of rocks, is younger than everything it cuts.
  2. 2. a scientist who studies Earth's crust as the processes and history that shaped it
  3. 4. the exact age
  4. 5. Recognized to represent a period of time
  5. 8. The amount of time it takes for half of a remaining Isotope to decay in a daughter product.