Weathering and Soil Formation

123456789101112131415161718
Across
  1. 3. process by which soil is moved
  2. 5. passing water removes substances
  3. 6. splitting of rock when water seeps in
  4. 9. an organism that breaks down dead organism
  5. 11. breaking down of rock through a chemical change
  6. 12. the past and present processes are the same
  7. 16. layer of soil under the topsoil
  8. 17. upper layer of soil
Down
  1. 1. dark,organic material
  2. 2. rock is physically broken into smaller pieces
  3. 4. break down rock at earths surfaces
  4. 7. a thick mass of grass, roots and soil
  5. 8. layer of rock underground
  6. 10. material that water can go through
  7. 13. chemical change in which a substance combines with oxygen forming rust
  8. 14. grinding away of rocks
  9. 15. layers of different colors of soil
  10. 16. loose material where plants grow
  11. 18. loose layer of dead plant leaves and stems on the surface of the soil