Soil

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Across
  1. 2. Below 6.9 on ph scale
  2. 6. Anything that has once lived
  3. 7. helps roots grow
  4. 10. 7 on the ph scale
  5. 12. natural volcanic material
Down
  1. 1. decayed organic matter
  2. 3. contains all primary plant nutrients
  3. 4. helps plant turn dark green
  4. 5. Measure of acidity or alkalinity of soil
  5. 8. nitrogen, phosphorus, potassium
  6. 9. increases disease resistance
  7. 11. above 7 on the ph scale