Insulators are used to stop heat from moving place to place. Five materials were tested for the ability to insulate: plastic, paper, polystyrene, glass, and metal.
The best insulator for keeping it warm were glass and polystyrene. The worst insulator were plastic, paper, and metal.
The best insulator for keeping it cool were plastic, paper, and polystyrene. The worst insulator were glass, and metal.
The best one for both warm and cold was polystyrene.
LI - To determine the insulation properties of materials
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