Unit 9a: Weathering, Erosion, & Deposition

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Across
  1. 2. moving or shifting of smaller pieces of broken rock by natural forces, such as wind, water, or ice
  2. 3. breaking down rocks by factors of Earth's environment such as pressure, temperature, water, and ice
  3. 5. weathering caused by plants growing in the cracks of a rock - roots spread the crack until the rock breaks
  4. 8. when sediments are deposited (dropped off) in a different location
  5. 9. wearing down of rock particles by friction due to water or wind or ice
Down
  1. 1. breaking down rocks though some sort of chemical reaction
  2. 4. water in a little crack in a rock; the water freezes and makes the crack even bigger when it expands and turns to ice
  3. 6. rain consisting of water droplets that are acidic due to the polluted atmosphere
  4. 7. the process when oxygen combines with an element, changing the element
  5. 9. an underground layer where the material contains water