weathering, erosion, and soil

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Across
  1. 3. the material of light is full of tiny connected spaces that allow water to seep through it
  2. 4. how well soil supports plant growth
  3. 6. loose weathered material on the earth's surface in which plants can grow
  4. 8. type of weathering where the rocks are physically broken down into smaller pieces
  5. 10. soil that is made up of equal parts sand, silt and clay
  6. 11. when water expands and freezes creating cracks in rocks. over time water continues to seep into rock coating bigger cracks eventually breaking the rock into pieces
Down
  1. 1. solid layer of rock beneath the soil
  2. 2. the process that breaks down rocks chemically (water, oxygen, carbon dioxide, acid rain)
  3. 5. the removal of rock particles by wind, water, ice or gravity
  4. 7. the process that breaks down rock and other substances at the earth's surface
  5. 9. a dark colored substance that forms as remains of animals or plants decay