Across
- 4. molecular nature rock is changed
- 7. topsoil,organic matter mixed with rock particles
- 8. Parent material, rock that has gone through little weathering
- 10. organic material, humus
- 11. bedrock, little or no organic material
- 12. the movement of soil particles by wind or water
- 13. classify soil based on relative amount of certain soils
- 16. partially decomposed plants and animals
- 17. largest type of rock particles with lots of space between particles
- 18. subsoil, more rock particles and less organic particles
- 20. loosens and mixes soil
- 21. smallest particle size with little space between particles
Down
- 1. shows the layers of soil
- 2. physical breakdown of rock by wind, or water
- 3. process by which fertile land becomes a desert
- 5. what each layer is called
- 6. ideal for farming
- 9. semi arid grasslands in the rain shadow of the Rocky Mountains
- 14. receive enough precipitation to support plants up to 6 feet in height
- 15. period of severe dust storms
- 19. Intermediate type of rock particle