Temporary Change and Permanent Change

This video will teach you what are temporary and permanent changes all about.
Temporary change is something that can be reversed or undone. It can change or alter how a material feels or looks but without producing a new matter. Permanent change is something that cannot be reversed or undone and not only changes how a material feels or looks but it produces a new material or matter. It is never reversible.

This link will give you an insight about a what are chemical and physical changes:    • Physical Change and Chemical Change