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Today we learned out about how insulators work.We took a plastic bag and filled it with many other items that are insulators.Socks aren't the best insulators , but bubble wrap is amazing because with the small air within the plastic it provides another layer of insulation. I don't know what is the best ,but I hope ours is the number one insulator.Our graph shows that our hot probe started to drop consistently throughout the time, but it only dropped 3.56 degrees in 20 minutes of experimentation.