Unit 3 Earth Science

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Across
  1. 3. the slow downhill movement of weathered rock material
  2. 4. A mixture of gravel, sand, silt, clay, and organic matter
  3. 7. a mass of rock and soil suddenly slips down a slope
  4. 9. water that flows over the ground surface rather than soaking into the ground
  5. 11. sediments deposited at the mouth of a river
  6. 13. The process that breaks down rock through chemical changes
  7. 15. rock fragments and pebbles
  8. 17. where groundwater reaches the surface
  9. 18. the source of a river where streams come together
  10. 19. wide, slow moving, flat flood plains, many meanders, oxbow lakes,
  11. 21. looping curves in a river
  12. 23. fast, narrow, rapids, waterfalls
  13. 24. well that does not need a pump
  14. 25. material formed from decaying leaves and other organic matter
  15. 28. an aquifer surrounded by a layer of impermeable rock or clay that impedes water flow
  16. 31. a lake formed when a meander curved back onto itself and is cut off
  17. 33. profile vertical display of soil layers
  18. 36. A measure of how much sediment is in water
  19. 37. erupting hot water
  20. 38. the land area that supplies water to a river system
Down
  1. 1. The type of weathering in which rock is physically broken into smaller pieces
  2. 2. Mixture of humus, clay, and other minerals that forms the crumbly, topmost layer of soil.
  3. 5. Ability of rock or soil to allow water to flow through it
  4. 6. A naturally occurring grainy material made of finely divided rock and mineral particles; the most common ingredient is silica
  5. 8. streams and smaller rivers that feed into a main river
  6. 10. The top of the saturated zone, or depth to the groundwater under Earth's surface
  7. 12. permeable and porous rock that stores water
  8. 14. fine soil found on river bottoms
  9. 16. organisms without backbones, which are visible to the eye without the aid of a microscope.
  10. 20. few rapids, some meanders, water is starting to slow down
  11. 22. The grinding away of rock by wind, water, ice, or gravity
  12. 26. mineral matter found in soil
  13. 27. horizon layer of soil (A,B,C)
  14. 29. Process that splits rock when water seeps into cracks, then freezes and expands.
  15. 30. the movement of rock particles by wind, water, ice, or gravity
  16. 32. Percentage of open spaces between grains in a rock.
  17. 34. the finest soil, made up of particles that are less than 0.002 mm in diameter.
  18. 35. the point where a river begins