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I assume you mean polystyrene. At any rate, "foam" contains air bubbles within the solid plastic or medium. Air is an insulating material (bit of a generalisation, but don't know to what level you want to the information). This stops thermal convection occurring, and prevents heat entering the container, in much the same way as a vacuum flask or Thermos keeps a drink hot.
This should really be under physics or chemistry btw.
FYI I have an A level in Chemistry and Physics. Also studying Biology at degree level.
What else can I help you with?
Does Styrofoam keep liquids warm?
Styrofoam is used to keep drinks cold or warm.
Is styrofoam a good insulator to keep hot water hot?
Yes, because it does not conduct heat.
What keeps water hotter paper or styrofoam?
styrofoam, but warning fammable and unsafe for the environment!
Does insulation keep things cold?
yes and hot too. Insulation is a heat barrier -- it tries to prevent heat exchange between the two sides. Vacuum is the best. Then air. Metals are the worst. ====================
Is adding ice to a styrofoam cooler going to change the temp of canned drinks?
no it will just keep the drinks cold longer
How can styrofoam cups be used to keep coffee hot and cola cold?
styrofoam cups keep you beverages hot or cold because they are awesome
Does Styrofoam keep liquids warm?
Styrofoam is used to keep drinks cold or warm.
Why do you pack your food in Styrofoam?
Usually food it packed in Styrofoam to keep it cold (or warm)
Why is food packed in styrofoam?
To keep cold food cold or hot food hot. Styrofoam is very good insulation.
Why food is packed in styrofoam boxes?
To keep cold food cold or hot food hot. Styrofoam is very good insulation.
How long can styrofoam keep a drink cold?
Styrofoam can keep a drink cold for several hours, depending on the surrounding temperature and insulation quality. It is more effective at blocking heat transfer than maintaining a specific temperature, so the duration can vary.
Which Insulation Keeps Water Hot or Cold the Longest?
not sure but i think styrofoam or thermocol
Does foam keep things cold?
Yes it would as insulators keep in the heat and keep it out depending on whether the item is hot or cold.
Do thermos cup or styrofoam cup keep water hotter?
thermos cup
What type of cup keeps water warm the longest-plastic paper styrofoam or glass and why?
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.
Why do styrofoam cups keep the liquids cold or hot?
Styrofoam cups have insulating properties that help to retain the temperature of the liquid inside. The material is made up of many small air pockets that slow down the transfer of heat, keeping hot liquids hot and cold liquids cold.
Can a styrofoam cup keep hot water hot?
A styrofoam cup can help to retain heat, but it is not as effective as materials like ceramic or insulated metal. Hot water in a styrofoam cup will cool down faster compared to using a better insulated material.
