Other materials that heat cannot move through easily are called insulators. Divide students into 4 groups. Give each group an identical jar of hot tap water. Screw on lid tightly. Have each groups choose from a variety of materials to wrap and insulate their jar.
Heat moves through liquids and gases by convection.
In convection, the particles move from one place to another. Stretch a balloon over the soda bottle. Heat the aluminum pie pan of water over the hot plate. Place the bottle in the pan of water for a few minutes and allow it to heat. Observe what happens.