More on weathering

Weathering is the process that decomposes and breaks down rocks. It is part of the rock cycle. Erosion is the process where weathered material is carried away by wind, water or ice.

Weathering can be mechanical or chemical. Mechanical weathering is the breakdown of rock without any chemical change. Chemical weathering involves chemical reactions to change the rock into a different substance.

Sandstone

 

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© State of New South Wales, Department of Education and Training, 2009 Print