Here's why:

* Heat transfer is the process of energy moving from a hotter region to a colder region.

* Thermal conductors are materials that allow heat to flow easily through them.

Examples of good thermal conductors:

* Metals (like copper, aluminum, iron) are excellent conductors, which is why pots and pans are often made of these materials.

* Water is also a good conductor, which is why it's used for cooling in many applications.

Examples of poor thermal conductors (insulators):

* Wood

* Plastic

* Air

* Glass

These materials resist the flow of heat and are used in applications where you want to prevent heat loss or gain.