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Weathering & Erosion - Coggle Diagram

- - - - Air contains gases (O2 and CO2) that react with some rocks causing them to crumble.
    - - Rainwater becomes acidic from lightning or pollution, as the CO2 dissolves in it. The acid rain, reacts with the rock minerals causing weathering.
    - - Water dissolves minerals from some rocks which removes the forces that hold them together.
  - - - Temperature Change can cause rocks to begin to form cracks.
    - - Water runs over rocks gradually wearing them away, Ice widens cracks made in the rocks as it expands.
    - - Salts form crystals when the water evaporates, if the crystals form inside a rock, it can cause it to expand and break.
    - - Fine particles of rock carried by the wind blast the surface of rocks wearing the pieces away.
    - - Plant rocks can grow through fine cracks in rocks, expanding the crack as the root thickens.