What is the difference between physical and chemcial weathering?Physical Physical weathering weathering only only happens happens with with plants plants and and animals, animals, while while chemcial chemcial weathering weathering is is caused caused by by technology. technology. Physical Physical weathering weathering is is breaking breaking up up rocks rocks by by force, force, while while chemcial chemcial weathering weathering involves involves chemical chemical processes. processes. Physical Physical weathering weathering is is what what you you observe, observe, and and chemcial chemcial weathering weathering is is invisible. invisible. Physical Physical weathering weathering and and chemcial chemcial weathering weathering are are the the same same thing. thing.