Across
- 2. The age of something relataive to another
- 4. This rule states that in rock formations undisturbed the oldest rock is on the bottom
- 5. the amount of time an object takes to decay
- 7. if a rock contains pieces of another rock that rock is always younger
- 8. A way to find the absolute age of a fossil
Down
- 1. the intervals of time occupied by the geologic time of Earth.
- 3. the ingeous rock cutting through is always younger rock
- 6. can be used to mark passages of time