Formation of Soil

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Across
  1. 3. a mixture of sand, silt, clay and rock and humus
  2. 5. the breakdown of rocks into very small particles by gravity, wind, water and ice
  3. 6. to divide or keep apart
  4. 7. a combination of two or more substances
  5. 9. energy that causes a transfer of heat between materials
  6. 10. to mix together
  7. 11. energy from vibrations that allow us to hear
Down
  1. 1. the pushing or pulling force caused by a magnet
  2. 2. a push or pull that causes and object to move, stop or change position
  3. 4. energy that allows us to see
  4. 8. to rot and break down the remains of plants and animals into smaller parts