Worms and Soil

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Across
  1. 2. water and sediment that flows across a surface
  2. 4. when dead organisms break down into simpler matter
  3. 6. sand, silt, or clay
  4. 8. clumps of soil held together by worm slime
  5. 9. important food for plants
  6. 11. sticky secretion from worms' bodies
  7. 12. contains organic matter like decaying organisms
  8. 14. when worm tunnels allow air into soil
  9. 15. element needed by plant roots
Down
  1. 1. when water penetrates into soil
  2. 3. organisms that break down/eat decaying matter
  3. 5. when soil is worn and moved by wind and water
  4. 7. tunnels created by worms
  5. 10. porous or the ability of water to flow through
  6. 13. the most nutrient-rich layer of soil