Chemical and physical weathering

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Across
  1. 3. - The breaking down and wearing away of rock material by the mechanical action of rock
  2. 4. - The process by which rock is broken down into smaller pieces.
  3. 6. -Repeated cycles of freeze/thaw
  4. 7. -What burrows and digs
  5. 8. - Often grow on rocks and trees
  6. 11. -The process by which other chemicals combine with oxygen.
Down
  1. 1. -Common features in cave systems as dissolved chemicals are deposited by dripping water underground.
  2. 2. change -Out layer of rock peeling away.
  3. 5. weathering The breakdown of rocks by chemical reaction.
  4. 7. Precipitation- When stronger acids fall to Earth
  5. 9. -causes cracks in rocks to physically break apart, as shown in the image below.
  6. 10. -The process by which the outer layers of rock slowly peel away due to pressure changes.