simply, though don't rely on this definition, the other two are very accurate...
but simply; if something undergoes a physical change it can be restored
uh;oihhbuv bujcvubhvchbmcvn bolzijAPODjckzklvmchkgihnkonlm,vncvj;cxlkn bvbmhn;ogjklvm,;bm dkfjdf;ihbjmcvklHow to make fire change colors?
Exactly. Physical changes are such as Hardness, Maliability, Texture, Smell, Looks.
Chemical changes produce a new substance