Across
- 3. smallest mineral component of soil
- 7. component of soil from living things
- 10. the naturally occuring top layer of the earth's surface
- 11. the larget mineral component of soil
- 12. gray/white material from volcanic ash
- 13. material in which plant roots grow
Down
- 1. method of growing plants in water
- 2. parially decomposed vegetation with a high moisture holding capacity
- 4. misplaced soil
- 5. heat treated mica
- 6. medium sized mineral component of soil
- 8. adds organic matter to soilless mix
- 9. medium that contains no soil