Physical and Chemical weathering

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Across
  1. 1. living thing chemically changing a rock
  2. 6. causing rocks to break apart when ice seeps into cracks and forces it apart
  3. 7. the process by which the outer layers of rock slowly peel away due to pressure changes
  4. 8. the breaking down and wearing away of rock by the mechanical action of other rock
  5. 10. rocks composition and appearance changing
  6. 11. types of physical weathering
  7. 12. often forces sidewalks apart
Down
  1. 2. chemicals combining with oxygen
  2. 3. rocks breaking into smaller sediments
  3. 4. the breakdown of rock material by physical and chemical processes
  4. 5. another name for causing rocks to break apart when ice seeps into cracks and forces them apart
  5. 9. forms holes in rocks