Chapter 3: Soil Science

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Across
  1. 3. decompose organic matter; tunneling to help aerate soil
  2. 4. chemical property that affects the availability of nutrients for plant growth
  3. 7. this layer contain a lot of clay, less organic matter
  4. 8. this layer consists mostly of weathered bedrock
  5. 10. loose surface of the earth; mostly inorganic
  6. 14. made up of highly decomposed, mixed up organic matter; most important layer
  7. 16. determined by the amount of sand, silt, and clay in a sample
  8. 18. last layer of the soil profile
Down
  1. 1. top layer of a soil profile
  2. 2. decayed or partially decayed plant/animal waste
  3. 5. perfect mix of sand, silt, and clay
  4. 6. largest soil particle
  5. 9. interaction of biotic and abiotic factors in soil
  6. 11. negative charges balanced by positive charges
  7. 12. a uniform mix made up mostly of organic matter
  8. 13. smallest soil particle
  9. 15. the process of parent material being broken down into soil particles
  10. 17. most numerous in activity; breaks down chemicals