Composting

12345678910111213
Across
  1. 3. Outer part of tree, you can compose it
  2. 6. These creatures help to get nutrients to soil
  3. 8. These tiny creatures love to eat rotten plants and dead animals
  4. 9. Compost is full of this
  5. 12. This element of soil has biggest particles
  6. 13. All plants need it to grow
Down
  1. 1. This is very good natural fertilizer
  2. 2. You can eat it, but you can not compose it
  3. 4. Type of soil with smallest particles
  4. 5. People breath it and plants need it too
  5. 6. Without this soil will be very dry
  6. 7. Part of the plant that is underground
  7. 9. You use it after meal and can compose it
  8. 10. Plants need it, but it could be too hot
  9. 11. This creature swims, but you can't compose it