Physical and Chemical weathering

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Across
  1. 4. Carbonic acids--> creates caves
  2. 5. glaciers,mudlides,waterfalls,landslides,and rivers
  3. 7. the process by which other chemicals combine with oxygen
  4. 8. causes rock to expand with heat and contract with cold
  5. 11. dig--> exposes more rock to the surface
  6. 12. the reakdown of rocks by chemical reactions
Down
  1. 1. in crack or opening in rock formed by ice or (frost)
  2. 2. the process by which rock is broken down into smaller pieces,by physical changes
  3. 3. the breaking down and wering away of rock material by mechanical waves
  4. 6. causes the outer layer of rock to peel off(exfoliation)
  5. 9. the roots grows large and adds more pressure on the rock, which causes the rock to expand
  6. 10. when strong acids fall to earth as the form of rain causing minerals on rocks to dissolves creating holes