Across
- 3. am area in a great plains where wind erosion caused soil lost
- 9. dead bones
- 10. says old is lower top is younger
- 11. big ice
- 13. sediment carried in water
- 14. water flows over ground
- 17. no back bone
- 18. big glaciers or a movie with sid
- 20. change over time
Down
- 1. a tiny groove in soil made by flowing water
- 2. weathered materials from earths surface
- 3. soil organisms that breaks down the remains of organisms
- 4. break down sediment
- 5. events in order
- 6. little stream go into big stream
- 7. worst position in baseball
- 8. a long narrow glaciers that form when snow advice build up in mountain
- 12. an animal with a back bone
- 15. a bend in a river
- 16. a large stream
- 19. dark colored soil