compost

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Across
  1. 2. water content necessary for compost microbes to survive
  2. 7. to naturally break down materials by bacteria and fungi
  3. 8. a heap of organic waste materials being composted
  4. 9. to reuse materials in a way that benefits the environment
Down
  1. 1. heat level inside a compost pile that affects decomposition
  2. 3. kitchen scraps and grass clippings in compost that add nitrogen
  3. 4. small creatures that help turn compost into nutrient-rich soil
  4. 5. microscopic organisms that break down organic matter
  5. 6. substances plants need to grow, released by compost
  6. 7. dry leaves, paper, and cardboard in compost that add carbon