2. Experiment: Different objects

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The materials do have the same temperature. However, usually the room temperature is at about 22°C and our body temperature at 37°C. All objects are therefore heated up once they meet your hand. Let's take the metal object as an example: metals are excellent heat conductors. Therefore, the heat of your skin can be transported to every corner of the object in a short amount of time. This is registered by the heat receptors of your skin. Thus, the object feels cold. Plastic or wood are worse heat conductors. The feels warm because only little heat can be transported through the object.