Unit 2 -Weathering and Erosion VOCAB

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Across
  1. 2. average temperature and precipitation over a long period of time
  2. 3. movement pulling of rock and sediment downhill by the force of gravity
  3. 7. breakdown of rocks by the repeated freezing and thawing of water
  4. 11. sediments coming to a rest
  5. 13. a change in an object that does change the identity of the object
  6. 17. the reaction of carbon dioxide and water to form an acid (carbonic acid)
  7. 19. broken down pieces of rock
  8. 20. movement of weathered sediments
Down
  1. 1. change in the chemical composition of a substance, while being broken down
  2. 4. sediment organized by size, shape & density; wind waves and running water cause these deposits
  3. 5. scratches in rock, caused by glacier
  4. 6. no organization of sediment; gravity and glaciers cause these deposits
  5. 8. chemical reaction where materials react with oxygen in the atmosphere (rust)
  6. 9. a change in an object that does not change the identity of the object
  7. 10. the physical breakdown of material, without changing the chemical composition
  8. 12. bumping together of rocks/sediment which causes the corners of rocks/pebbles to be rounded
  9. 14. the breakdown of rocks on or near the Earth's surface, into smaller segments
  10. 15. usually in mountain areas the rapid movement of rock or debris down a slope
  11. 16. slow moving mass of ice and snow on mountains or near the Earth's poles
  12. 18. weathered rock that also contains organic materials (biological activity) carries based on where you live