Soil Crossword puzzle

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Across
  1. 4. Dead leaves and twigs forming a layer on the forest floor
  2. 6. A distinct of soil with unique properties
  3. 7. Dark, nutrient-rich part of soil formed from decayed matter
  4. 9. Fine soil carried and deposited by flowing water
  5. 15. Tiny gaps in soil that contain air or water
  6. 17. Subsoil layer where minerals and nutrients build up
  7. 18. Topsoil layer rich in organic matter
  8. 20. Topmost soil layer made of decaying organic matter
  9. 22. The rock or sediment from which soil develops
  10. 23. Soil layer of partly weathered rock below the B Horizon
  11. 24. Small loose stones used in construction or soil
Down
  1. 1. Fertile soil with roughly equal parts sand, silt, and clay
  2. 2. Soft, fined-grained earth used to make pottery
  3. 3. Wearing away and carrying off of earth’s surface minerals
  4. 5. Process of creating soil from rocks, minerals, and organic matter
  5. 8. The measure of empty space between soil particles
  6. 10. Process of nutrients being washed out of soil by water
  7. 11. Substances that provide nourishment for growth and life
  8. 12. Substance added to soil to increase plant growth
  9. 13. Decomposed planet and animal matter found in soil
  10. 14. Surface features and shape of the land
  11. 16. Tiny grains that make up beaches and dunes
  12. 19. Breaking down of rocks by natural forces
  13. 21. Organism that break down dead matter into nutrients