Weathering and Soil Crossword

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Across
  1. 5. the amount of open space between an object
  2. 6. The decaying organic matter in soil
  3. 8. The top layer of soil that contains humus
  4. 10. The ability to let water pass though
  5. 11. A soil layer with physical and chemical properties that differ from those of the soil layers above or below
  6. 12. Break down or decomposition of rock that takes place when minerals change through chemical processes
  7. 13. The process by which natural forces break down rocks and soil
  8. 16. The process in which layers or sheets of rock gradually break off
  9. 18. The process of wearing something down by friction
Down
  1. 1. The size, shape, and position of the particles of soil
  2. 2. The process in which transported sediment is laid down
  3. 3. The expansion of desert condition in an area where the natural plant cover has been destroyed
  4. 4. The breakdown of rock into smaller pieces of the same material without any damage to its composition
  5. 7. The make up of soil describing the minerals or elements present in it
  6. 9. Layer of rock beneath the soil
  7. 14. The process in which sediment is picked up and moved from one place to another
  8. 15. A chemical reaction in which an element combines with oxygen to form an oxide
  9. 17. The process by which rain water dissolves and carries away minerals and nutrients in topsoil