Across
- 4. when gravity moves soil or rock
- 6. wind erosion caused soil
- 8. when rocks grind away
- 9. management of soil
- 12. a process that breaks down rocks
- 13. rich or fertile soil
- 14. a measurement to tell how your plants are doing
- 15. used to grow plants outside
- 16. a curved slope
- 17. a dark colored soil
- 18. A ______ weathering breaks rocks threw chemical changes
- 20. crops left on the ground to hold new ones in place
- 23. planting diffrent crops every year in the same place
- 24. connects points of elevation
- 25. a material that is full of tiny
- 26. slits rocks in half to fill in cracks
- 28. a hard layer of earth
Down
- 1. the layer of soil beneath topsoil
- 2. a ______ weathering that rocks are broken into small pieces
- 3. thick mass
- 5. A ______ map that shows surface features
- 7. soil that is the highest layer of earth
- 10. soil that differance in color and texture
- 11. change in earths Past
- 19. layer of dead plant's and stems
- 21. earth uses this to make earth
- 22. a chemical change in a substance
- 27. broken down soil