Soil Crossword Puzzle

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Across
  1. 3. the layer of rock beneath the soil
  2. 4. soil often ends up in a series of layers
  3. 6. process by which wind, water, and ice or gravity transports soil
  4. 7. dark, organic material found in soil
  5. 9. crops that are planted between harvests
  6. 10. without soil to hold water, plants get the moisture of the nutrients they need
  7. 12. plowing across the slope hills
  8. 13. soil structure
Down
  1. 1. a rock formation that is the source of soil
  2. 2. changing 1 steep field into series of smaller hills
  3. 4. method to maintain the fertility of the soil
  4. 5. top layer of soil is called
  5. 8. planting different crops
  6. 11. a loose mixture of rock fragments, organic material, water, and air that supports growth of vegetation.