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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.
To keep hot liquids hot and cold liquids cold by minimizing heat transfer between the inside of the thermos with the outside.
A Styrofoam cup will do both. The Styrofoam is an insulator, and, as such, it slows the transfer of heat between the system (the drink) and the surroundings (everything outside the cup) If it is a cold drink, heat moves very slowly through the cup toward the drink. If it is a hot drink, heat moves very slowly through the cup toward the surrounding air.
Styrofoam is an excellent insulator.
Styrofoam because it has a thick layer and is a good insulator.Paper and plastic are could alternatives but Styrofoam would work better, therefore glass would be the worst one to use because it would only keep it warm for a couple of minutes.
styrofoam cups keep you beverages hot or cold because they are awesome
Styrofoam is used to keep drinks cold or warm.
Styrofoam cups because of what they are made up of
helps "insulate" - helps the temp. of the liquid stay the same
styrofoam is an insulator. It only works if thematerial stored is already cold.
Usually food it packed in Styrofoam to keep it cold (or warm)
To keep cold food cold or hot food hot. Styrofoam is very good insulation.
To keep cold food cold or hot food hot. Styrofoam is very good insulation.
It's a better insulator
Heat cannot travel through the foam material so the drink stays well insulated inside the foam cup.
Styrofoam cups will keep a hot drink warmer for a long time. Insulated cups will also keep your drink warmer longer.
by inhibiting heat conduction