Across
- 2. Rich, fertile soil
- 6. Solid layer of rock under the soil
- 7. A warm-blooded organism with hair and milk
- 8. The preserved remains of something
- 9. A fossil that provides evidence of behavior
- 10. Brown decayed material
- 13. Large mass of ice/snow
- 16. The layer of rock above is younger than the last
- 17. Try THIS!!!!
- 19. A fossil where an organism dissolves in sediment
- 20. Underground magma pocket
- 21. A unit of geological time divided into eras
Down
- 1. Wave-washed sediment along a coast
- 3. Loop-like bend in a river
- 4. A unit of geological times divided from periods
- 5. Minerals replace all or part of a fossil
- 11. Old, eroded rock meets new rock
- 12. Break or crack in the lithosphere
- 14. Wind-formed soil made of silt and clay
- 15. An above ground lava spill
- 18. An extremely thin layer of carbon on rock