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Weathering - Coggle Diagram

- - - - As groundwater moves through spaces or cracks in rock, acids in the water can cause rocks to dissolve. A small crack in a rock can result in the formation of extensive cave systems.
      - Reactions with oxygen
        
        Iron in rocks and soils combine quickly with oxygen that is dissolved in water.
- - - - When animals dig burrows and allow new rocks and soils to be exposed into the burrows.
    - - In moving rocks water can become smoother
    - - The wind can lift up particles in the air and make them smaller.
      - Gravity
        
        During a landslide, large rocks can fall from a higher up slope and break more rocks from below.
        
        Pressure Changes