Here's why:

* Material: Forks are typically made of metal, like stainless steel or silver. Metals are excellent conductors of heat.

* Heat Transfer: When you heat a fork (for example, by holding it over a flame), the heat energy is transferred quickly through the metal from the hot end to the cold end. This is why your hand will feel the heat after a short period.

Insulators are materials that resist the flow of heat. Examples of insulators include wood, plastic, and rubber.