Soil

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Across
  1. 5. Humus helps to make the soil ______.
  2. 7. Soil is a natural ________.
  3. 9. Word that means 'made up of'.
  4. 10. There are ____ main ingredients of soil.
  5. 11. The very bottom layer of the soil profile.
  6. 12. Dark, jelly-like substance.
  7. 13. The main soil type of Ireland.
Down
  1. 1. The main ingredient of soil.
  2. 2. Help to mix-up the soil.
  3. 3. Helps to bind the soil together.
  4. 4. The middle layer of the soil profile.
  5. 6. Caused by excessive water in soil.
  6. 8. Each layer of the soil profile is called a _______.
  7. 10. There are 7 _____ which influence soil formation.