what happens when a substance undergoes a physical change
What happens to substances or materials that undergo physical and chemical changes? That depends on which change. Physical changes may result in a change in appearance, but never a change in composition. Ripping, folding, melting, boiling, dissolving, and câ¦rumpling are examples of physical changes. After all of these, the substance is still made of the same atoms/elements. A chemical change will change both the appearance and composition of the matter. Examples of this are burning and reacting with acid.