Soils

1. Living particles in soil
3. Macronutrient represented by a "N"
5. Spaces between soil particles
7. To raise the pH of soil, you add this
8. Smooth, hard texture; holds lots of water; individual particles cannot be seen with the naked eye
12. A layer parallel to the soil surface, whose physical characteristics differ from the layers above the earth
13. minerals or substances that occur in nature and can be used for economic gain
14. Macronutrient represented by a "K"
15. Intermediate soil particle, powdery texture
17. Soil horizon that is made of organic matter

2. The way soil particles cling together to form soil units
4. Macronutrient represented by a "P"
6. A vertical section of the soil from the ground surface downwards to where the soil meets the underlying rock
8. Soil horizon that is made up of the parent material
9. Soil horizon that is the subsoil (mostly clay)
10. Mixture of sand, silt, and clay. Best type of soil for growing plants
11. Largest soil particles; low water holding capacity
16. Soil horizon that is the topsoil
18. Soil horizon that consists of bedrock