Across
- 1. the predictable time an element takes to decay
- 6. the process of determining an age on a specified chronology in archaeology and geology.
- 8. 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
- 9. The study of how sedimentary rock layers form and their relationships to one another is a branch of geology known as stratigraphy.
- 10. a scientist who studies Earth’s crust as well as the processes and history that shaped it
Down
- 2. If a rock body contained fragments of another rock body, it must be younger than the fragments of rock it contained
- 3. The remains of ancient organisms
- 4. the process of determining if one rock or geologic event is older or younger than another, without knowing their specific ages
- 5. To determine age using words like Younger or Older
- 7. To determine age by using exact ages (Ex. He 15 and She is 36)