Weathering, Erosion & Soil

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Across
  1. 4. The chemical and physical processes that break down rock at the Earth's surface
  2. 7. Weathering process in which outer layers of rock break away from the rest of the rock
  3. 9. A chemical change in which a substance combines with oxygen
  4. 10. The layer of soil that is beneath topsoil, containing mostly clay and other minerals
  5. 11. The loose, weathered material on Earth's surface in which plants can grow
  6. 14. Weathering process in which rock is physically broken into smaller pieces
Down
  1. 1. Mixture of humus, clay, and other minerals that form the crumbly, topmost layer of soil
  2. 2. Process by which sediment is laid down in new locations
  3. 3. The process that breaks down rock through chemical processes
  4. 5. A large channel in soil formed by erosion
  5. 6. Soil organisms that breaks down the remains of organisms and digests them
  6. 8. The process by which ice, wind, water, and gravity moves weathered rock or soil
  7. 12. The weathering process that results from rocks and/or sediment grinding together
  8. 13. Small solid pieces of materials that come from rocks or organisms