Unit 6 Vocab

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Across
  1. 2. Very tiny particles that feel sticky. Clay holds a lot of water but drains slowly
  2. 3. The layer under topsoil. It has fewer nutrients and more clay
  3. 7. How much of the food (nutrients) plants need is in the soil. Healthy soil has a lot
  4. 9. Parts of soil that were never alive, like sand, clay, or minerals
  5. 10. The outer layer of the Earth that includes rocks and soil. It’s where we live and grow food
  6. 11. The top layer of soil. It’s where most plant roots grow and is full of nutrients
  7. 14. The best mix of sand, silt, clay, and humus. It’s great for growing plants
Down
  1. 1. Things in the soil that once were alive, like dead leaves or roots. They help plants grow
  2. 4. The process of breaking down dead plants and animals into nutrients. Worms and bacteria help with this.
  3. 5. The process of breaking down dead plants and animals into nutrients. Worms and bacteria help with this.
  4. 6. Large soil particles that feel gritty. Sand doesn’t hold much water
  5. 8. Medium-sized particles that feel soft, like flour. Silt holds some water
  6. 12. How good the soil is at helping plants grow. Fertile soil has nutrients and water
  7. 13. Dark, rich part of soil made from decomposed plants and animals. It adds nutrients to the soil