Soil Science

2. Aggregates are small, porous, and weakly held together
6. Smallest soil particle
9. The fineness or coarseness of a soil. It describes the proportion of three sizes of soil particles
10. Aggregates are flat or plate-like; plates overlap, usually causing slow permeability
14. There is no apparent structure to the soil particles
19. ____________ soil is soil that has been moved by natural processes
21. This method of determining soil texture uses percentages of sand, silt, and clay determined in a lab
22. Rounded Caps, aggregates are prism-like with the vertical axis greater than the horizontal

1. Soil _________ is the ease with which soil may be tilled and the timing of working the soil after a rain
3. Aggregates are block-like, with six or more sides; all three dimensions are about the same
4. Soil __________ is the process where bedrock is broken down into smaller particles until it becomes soil
5. Medium sized soil particle
7. Flat caps, aggregates are prism-like with the vertical axis greater than the horizontal
8. Soil particles cling together in large uniform masses
11. Refers to rainfall, freezing, thawing, wind, and sunlight
12. Aggregates are small, non-porous, and strongly held together
13. _________ Loam occurs when there is 80% silt and 20% sand in a soil sample
15. ___________ grain soil structure, soil particles exist as individuals and do not form aggregates
16. refers to the slope characteristics of a soil
17. The largest soil particle
18. The ease with which air and water may pass through the soil
20. This method of determining soil texture may be determined in the field