Across
- 2. cutting the law that states if one type of rock is cutting through many different layers it is the newest rock
- 4. a scientist who studies rocks
- 5. the age of rocks based on the year
- 7. the age of rocks based on other rocks
- 8. the law that says if a rock is inside a rock the outside rock is newer
- 9. dead animal reserved in stone
- 10. the time it takes for a radioactive itoscope to reduce by halve
Down
- 1. the history of earth based off of rocks and fossils
- 3. sideways layers of sedimentary rock
- 6. the law that says what age a rock is based on how close to the surface it is