Physical properties are measurable physical characteristics of something that are not involved in a chemical change. The changes in the physical properties of a system can be used to describe the way it changes between momentary states. For example, colour, density, melting (and boiling) point, hardness, and electrical conductivity are all physical characteristics.
A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific chemical change.
