Polystyrene

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"Polystyrene." 30 August 2007. HowStuffWorks.com. <http://reference.howstuffworks.com/polystyrene-encyclopedia.htm> 09 July 2008.

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Polystyrene is a glasslike, lightweight plastics material used in a variety of goods. Products made of polystyrene include food packaging, insulation, housewares, and automobile parts.

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Polystyrene

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