Across
- 2. When magma pushes in between underground rock formations
- 3. The process where rocks are broken down
- 5. When magma pushes to the surface and makes igneous rock
- 7. Cylinders of ice made by drilling glaciers or ice sheets
- 9. Rock formed by cooling magma
- 11. Finding age by using the decay of radioactive elements
- 12. A scientist that studies fossils
Down
- 1. A comparison that tells which is older but not exact
- 4. The timeline of geologic events on earth
- 6. Rock formed when sediment is compressed
- 8. An exact number of years that tells when a rock formed
- 10. When natural processes move soil to somewhere else