Unit 3 Review Soil, Weathering, Erosion, and Rivers

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Across
  1. 1. The largest soil texture size.
  2. 4. The agent of erosion most responsible for moving sediment in Culpeper.
  3. 5. 40% silt, 30% sand, 30% clay
  4. 8. The watershed to the far western corner of Virginia.
  5. 10. Clay has a high _________, even though it is impermeable.
  6. 11. This is the source of pollution that is hard to mitigate, because you do not know who is contributing the runoff.
  7. 12. A bend or curve in a stream.
  8. 15. The P in CROPT for what affects soil formation.
  9. 16. A more common name for oxidation.
  10. 17. This is the largest river in the world by volume.
  11. 18. If you are upstream, you are closer to the ….
Down
  1. 2. A fast tumbling of materials down a slope (usually has snow)
  2. 3. Occurs as a large chunk of material quickly goes down a slope as one block.
  3. 6. Small creatures that indicate whether water has pollution or not.
  4. 7. The organic material found in the O horizon.
  5. 9. The breaking apart of rocks on cliffs by the freezing of water.
  6. 13. The main macronutrients in soil.
  7. 14. The presence of __________ in a water sample usually indicates that the water has fertilizer runoff.
  8. 17. The rubbing of sediments on a rock that results in the smoothing and chipping away.