Chapter 5 Weathering, Soil, and Mass Movement

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Across
  1. 3. layer of soil that differs in color and texture from the layers above or below it
  2. 6. plant roots growing into cracks in rock
  3. 7. rock is physically broken into smaller pieces without changing the rock’s mineral content
  4. 9. loose, weathered material on Earth’s surface in which plants can grow
  5. 10. soil forms in temperate areas that receive more than 63 cm of precipitation each year
  6. 11. the slowest type of mass movement
  7. 12. farmers disturb the soil and its plant cover as little as possible
  8. 13. farmers plow their fields along the curves of a slope
  9. 14. the process by which water freezes and expands, enlarging cracks
  10. 18. the transfer of rock and soil downslope due to gravity
  11. 21. downward movement of a block of material along a curved surface
  12. 23. thick mass of tough roots at surface of soil
  13. 24. mass movements of material containing large amounts of water
  14. 25. removal of rock particles by wind, water, ice, because of gravity
Down
  1. 1. Process that breaks down rock through chemical changes
  2. 2. management of soil to prevent its destruction
  3. 4. crumbly dark brown, mixture of humus, clay, and other materials
  4. 5. soil form in hot, wet tropical areas
  5. 8. process in which sediment is laid down in new locations
  6. 11. farmer plants different crops in a field each year
  7. 15. process that breaks down rock and other substance at the earth's surface
  8. 16. solid layer of rock beneath the soil
  9. 17. organic material formed by decaying organisms
  10. 19. B horizon, consists of subsoil like clay and other particles
  11. 20. weathering produces this layer of rock and mineral fragments
  12. 22. soil found in the drier western United States