Thermal energy is the ___ of the kinetic and potential energies of all particles in an object. A sum B difference C multiplication

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.

False, as a substance changes from a solid to a liquid and from a liquid to a gas the molecules get farther apart from each other