Want this question answered?
Yes
no
No, it's not
Insulator
Styrofoam cup is a good insulator because it is coated with foam
Yes
styrofoam. Because it has a plastic base
Styrofoam is a better insulator of heat than plastic. The plastic allows the heat in and out and the cold in and out. The Styrofoam helps keep the heat in.
no
cotton
saw dust is the better termal insulator
No, it's not
The best insulator in descending order is, glass, plastic and then wood.
Styrofoam is an insulator.
Putting the cup in the freezer keeps ice from melting. Those cups will slow down the melting rate, but if you've got ice at room temperature it's gonna melt eventually. Having said that, ice will melt slowest in a styrofoam cup.
Insulator
Styrofoam cup is a good insulator because it is coated with foam