Foam lets extra cold air reach the water
Foam will insulate better than plastic.
foam has better heat retention
I assume you mean the water in the cup. Foam is a better insulator than glass, so it should be the water in the glass cup.
pu foam
faom it is less breakable especailly if you are clumsy.
It sticks easier to glass. Or to flatter surfaces. Cloth or foam wont work. It sticks easier to glass. Or to flatter surfaces. Cloth or foam wont work.
plastic because foam can get a hole in it easier and can cause your kool-aid to spill out on your pants
polystyrene foam cups and composite Wood material like snake glass fiber etc
With rubber or circular foam that you can by from any hardware store
The majority of plastic cups can be reused or recycled. Polystyrene, or foam, cups are not widely recyclable. Cost wise, plastic cups tend to more inexpensive than polystyrene cups.
Assuming they are the same or similar shape and volume, water in glass would freeze first, then plastic then foam. Foam allows transfer of heat out of water more slowly than plastic and the glass probably has the highest rate of heat radiation of the three.
Polystyrene is a plastic. I think you meant "polystyrene foam", which would be correct.