Earth and Human Vocabulary Part 1

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Across
  1. 4. The outer layer of the Earth that includes rocks and soil.
  2. 5. The best mix of sand, silt, clay, and humus.
  3. 9. Very tiny particles that feel sticky.
  4. 10. The top layer of soil. It’s where most plant roots grow and is full of nutrients.
  5. 12. How soil feels based on the size of its particles.
  6. 13. Medium-sized particles that feel soft, like flour.
  7. 14. Large soil particles that feel gritty.
Down
  1. 1. The layer under topsoil. It has fewer nutrients and more clay.
  2. 2. content How much of the food (nutrients) plants need is in the soil.
  3. 3. Parts of soil that were never alive, like sand, clay, or minerals.
  4. 6. Things in the soil that once were alive, like dead leaves or roots.
  5. 7. The process of breaking down dead plants and animals into nutrients.
  6. 8. How good the soil is at helping plants grow.
  7. 11. Dark, rich part of soil made from decomposed plants and animals.