Across
- 4. When water soaks into the ground
- 6. Movement of water through soil layers
- 7. Another name for the A horizon
- 8. Horizon made of parent material
- 11. Ideal soil type made of equal parts sand, silt, and clay
- 12. Process where nutrients are washed from topsoil
Down
- 1. The removal of soil by wind or water
- 2. Smallest soil particle, retains water well
- 3. The movement of air through the soil
- 5. Breakdown of rocks to form soil
- 9. Dark, crumbly material formed from decayed organisms that improves soil quality
- 10. Soil layer rich in decomposed organic matter