One can find information about plastic foam, also called microcellular plastic, by reading about it in a rich dictionary, on Wikipedia or website 'Forms'.
This depends on the assortment of plastic or paper.
Mass I think because foam is not a shell structure or frame.
Yes, a plastic cup is generally lighter than a glass cup because plastic is less dense than glass. This means that a plastic cup will weigh less than a glass cup of the same size.
Polyurethane (PUR and PU) is a polymer composed of a chain of organic units joined by carbamate (urethane) links. While most polyurethanes are thermosetting polymers that do not melt when heated, thermoplastic polyurethanes are also available. Polyurethanes plastic commonly used in the manufacture of flexible, high-resilience foam seating; rigid foam insulation panels; microcellular foam seals and gasket - in.kompass.com/a/bottles-plastic-for-the-pharmaceutical-and-cosmetic-industry/2071009/
Foam is NOT plastic!
Foam will insulate better than plastic.
why does a foam softball seeem much lighter than a normal softball
Assuming the foam is from furniture stuffing, then the answer is no. Such foam is plastic and is definitely not edible.
One can find information about plastic foam, also called microcellular plastic, by reading about it in a rich dictionary, on Wikipedia or website 'Forms'.
plastic because foam can get a hole in it easier and can cause your kool-aid to spill out on your pants
It is a foam related plastic.
bye
This depends on the assortment of plastic or paper.
Steel, plastic and insulating foam.
foam and metal and plastic
depends if the plastic is heavier or lighter than water and if its hold air which is lighter than water