Soil

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Across
  1. 2. Which particle of soil doesn't air or water through very well?
  2. 5. Soils on mountain and hillsides can wash away, making the topsoil _______.
  3. 8. Acids from ______ break down rocks.
  4. 10. What soil contributor recycles organic matter and releases nutrients?
  5. 11. Parent ______ determines if soil is acid or basic.
  6. 12. Silt, sand, and clay are all soil ______
Down
  1. 1. Do higher temperatures make faster or slower breakdown and release of nutrients?
  2. 3. Which soil particle is smooth and powdery?
  3. 4. Organisms create ______ for water and roots.
  4. 5. The two most important climatic influences are rainfall and ______.
  5. 6. A negative human influence to soil is cutting down rainforests and cultivation on steep slopes. What does this cause?
  6. 7. Over time, rocks break down because of snow, rainfall, freezing and thawing. These pieces then breakdown even more and become ______.
  7. 9. Cultivating and farming = ______ topsoil.
  8. 13. Which particle of soil is largest?