* Chemical Change: Involves the formation of new substances with different chemical compositions. This often involves breaking and forming chemical bonds.

* Electrical Conductivity: Describes the ability of a material to allow the flow of electric current. It's a physical property related to the movement of electrons within the material's structure.

Examples:

* Metals: Conduct electricity well because they have free-moving electrons in their structure. This movement is a physical property, not a chemical change.

* Saltwater: Conducts electricity because dissolved ions can carry charge. The dissolving of salt is a physical change (dissolution), but the conductivity itself is a physical property.

In short: Electrical conductivity doesn't involve the creation of new substances or the breaking and forming of chemical bonds. It's a measure of a material's ability to allow electrical current to flow, which is a physical property.