Across
- 3. Youngest rocks are on top and older rocks are on bottom
- 5. Assuming or comparing the age of someone or something
- 6. the amount of time it takes for half of an isotope to decay to a daughter product
- 7. used for absolute dating
- 9. used for dating and strata,same fossils found in the same region of earth
- 10. the youngest rock cuts through the older rocks
Down
- 1. the record of preserved rocks
- 2. Exactly how old something or someone is
- 4. The geological time scale is a representation of the Earth’s age using rock records.
- 8. rocks that are found in other rocks are older than the surrounding rocks