metal cup because it has insulation
Plastic - Foil is metallic and conducts heat easier
paper
Apparantely plastic keeps ice water colder because since aluminum water bottles absorbs the cold and the plastic doesnt so pretty much it keeps colder :)
styrofoam, but warning fammable and unsafe for the environment!
It is not recommended to put boiling hot water in a rubbermaid water cooler as it may damage the plastic material and affect the integrity of the cooler. It's best to use water at a safe temperature that is suitable for the cooler.
Swamp coolers, also known as evaporative coolers, are typically made of galvanized steel, aluminum, or plastic. These materials are used for their durability and ability to withstand exposure to water and moisture in a swamp cooler's operation.
I think its a plastic.
Igloo-type cooler.
cars don't have plastic radiators, if they do the plastic would probably melt, and the compound of metal cools and heats quickly which is useful in cooling water.
probably metal
Metal shower heads look nicer but show hard water, plastic will not show hard water, if you have a water softener a metal shower head is the way to go.
When you put metal in water it cools down quick. When you put plastic in the microwave, you're in for a big problem....Plastic is the answer.