Soil and Weathering

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