Analyze how friction can be positive and negative aspect in our everyday lives

Friction allows us to be standing/sitting where we are. without friction, we would be sliding all over the place. but friction doesn't only act upon us, it also acts upon every object you see.

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.