Across
- 2. A measure of the acidity of the soil
- 7. behavior of soil under stress; this is described according to moisture level
- 9. Downward movement of water through soil.
- 11. the process of changing once-living material into dark-colored organic matter
- 13. plants (flora) and animals (fauna) living in and on the soil of a certain location
- 15. Layers of soil
- 16. the property of soil determined by relative proportions of sand, silt, and clay
- 17. A mixture of weathered rock, rock fragments, decayed organic matter, water, and air
Down
- 1. the layer of the soil closest to the surface and is excellent for plant growth because of the organic material in it
- 3. A soil horizon composed of mostly clay and small sediments and not as nutrient rich
- 4. The starting material that is weathered to form sediment in soil.
- 5. the average weather of an area that can influence the soil
- 6. soil layer of weathered parent bedrock
- 8. a soil's ________________ is influenced by the mineral composition, presence of organic matter, abundance of iron, and moisture content
- 9. As particle size increases, pore size in the soil ______________leaves, dead insects, waste products examples of organic material in soil
- 10. small holes and spaces in soil
- 12. the shape and steepness of the landscape; determines what will happen to the water that reaches the soil
- 14. Non-living material, such as stone or clay that would be in the soil
- 18. material in the soil that was once living