1. Why can some materials insulate heat better than others? For example, metal can insulate heat better than wood.
2. In your opinion, what factors can affect heat and cold insulation?
3. From our experiment, we figured out that aluminum foil insulates heat the best, why do you think so?
4. When we applied cold to our materials, the temperature increased as soon as we took away the ice pack but then started decreasing. Do you think it increased because of the room temperature?

