Across
- 3. the process of rocks being broken down
- 4. When magma comes to the surface through volcanic cracks/craters to form igneous rock
- 6. this type of fossil is used to determine the age of related rock formations
- 8. the process of being broken down or being moved by wind, water, or other natural agents
- 10. cylinders of ice drilled from glaciers and ice sheets
- 12. the true age of a rock or fossil
Down
- 1. the law that states in rocks layers, the youngest will always be on the top and the oldest on the bottom
- 2. A scientist that studies fossils
- 5. A comparison of age based on which object/event is older or younger than another object/event
- 7. the type of rock that forms when magma or molten rock cools into a solid
- 9. The remains or impression of a prehistoric organism in rock
- 11. A division of geologic time marked by distinctive developments and events