Conductivity is a property that describes how well a material allows heat or electricity to pass through it. Some materials, such as metals, are good conductors. Others, such as plastic, do not allow energy to pass through easily. Conductivity can refer to heat or electricity.

Conductivity is found in materials used in electronics, energy systems, and everyday objects. Wires, cooking tools, and devices are chosen based on this property. Different materials have different levels of conductivity.

Conductivity is used to select materials for specific purposes. It varies between substances such as metals, liquids, and gases. This property is part of how materials are described and used in science and technology.