Which material is an example of a thermal conductor?

Glass is an example of a thermal conductor because it has a high thermal conductivity, allowing heat to pass through it efficiently. This property is crucial in various applications, such as windows and cookware, where heat transfer is necessary. In contrast, materials like rubber, Styrofoam, and wood are known for their insulating properties, making them poor conductors of heat. These materials trap air and reduce the flow of thermal energy, which is why they are commonly used for insulation to prevent heat loss or gain. Thus, glass stands out as a material that facilitates the conduction of heat effectively.