Chapter 8 Crossword Puzzle

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Across
  1. 2. decayed organic material in soil
  2. 4. a narrow shallow channel formed by water erosion on a slope
  3. 5. angular boulders that accumulate in a pile of a cliff or steep slope
  4. 8. the process by which one productive lands have become increasingly desert
  5. 10. the fracturing of rocks due to reduction of pressure
  6. 12. the removal of weathered materials from a place by agents
  7. 13. the chemical weathering of minerals by a reaction with water
Down
  1. 1. the dissolving of substances
  2. 3. a chemical reaction that occurs when atoms or ions lose electrons
  3. 6. water solution that contains an excess of hydrogen
  4. 7. a loose complex mixture of mineral grains on earth surface
  5. 9. the uppermost nutrient rich part of soil
  6. 11. a deep channel in sediment or soil caused by water erosion