SOIL

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Across
  1. 3. Bacteria and fungi.
  2. 8. Plant or animal material.
  3. 9. The way soil particles clump together in groups.
  4. 10. Tiny pieces of rock of various sizes.
  5. 13. Decaying material from plants and animals.
  6. 14. The way in which soil particles stick together.
  7. 16. The washing away of nutrients from soil.
Down
  1. 1. The top layer of soil, where most plants will grow.
  2. 2. A light crumbly soil.
  3. 4. Substances in soil needed by plants for growth.
  4. 5. The proportion of sand, silt, and clay in a soil.
  5. 6. A fertile soil that has a good mixture of sand, silt and clay.
  6. 7. Single-celled microscopic organisms.
  7. 11. Gaps between soil particles.
  8. 12. The layer of soil beneath the topsoil.
  9. 15. Organisms with thread-like cells.