SOIL

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Across
  1. 4. the layer under humus that provides support and nutrients to plants.
  2. 6. the middle layer of soil which is a combination of soil and rocks.
  3. 7. the layer of large rocks below the soil.
  4. 9. soil with the largest particles.
  5. 10. the top layer of soil made up of broken down pieces of dead plants and animals.
Down
  1. 1. soil made up of very small broken pieces of rock.
  2. 2. material found on the surface of the earth consisting of a mixture of rock, sand, clay, dead plants, and animal remains.
  3. 3. soil that is a mixture of sand, silt, and clay.
  4. 5. materials that plants and animals need to grow.
  5. 8. soil with the smallest particles