Chapter 4 Vocab

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Across
  1. 3. Black or brown substance resulting from the decay of plant & animal matter
  2. 5. Dead plant and animal material that has many functions in soil
  3. 6. Document classifying all of the soils in a given area
  4. 8. Surface layer of soil with the most productivity
  5. 9. Layers in a mature soil resulting from differing amounts of weathering
  6. 10. Process of weathering away layers of soil
  7. 12. Change in elevation for a given horizontal distance
  8. 15. System that describes the characteristics of soil
  9. 16. Process of breaking down rocks and minerals through the action of weather
  10. 17. Material underlying the soil that it is developed from
  11. 19. Deposited by moving water
Down
  1. 1. Probability that a flood of a given degree of severity will occur in a known period of time
  2. 2. Relative percentage of sand, silt and clay in a given soil sample
  3. 4. Layer of soil deposited over time on the ocean floor
  4. 6. Second layer of soil
  5. 7. Windblown soil deposits
  6. 11. Partially decomposed tissue that still resembles the original material
  7. 13. Tells us what the land can be used for
  8. 14. Ability of soil to allow water to move through and out of the soil structure
  9. 18. Layer on top of the earth that supports life