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1) Which kind of plastic is still being used today? a) polystyrene b) polyvinyl chloride c) polyethylene d) acrylics 2) Why is plastic used for consumer products? a) It is shatterproof and resilient b) Nonrenewable and biodegradable c) Highly flammable and dangerous d) Inexpensive and easily accessible 3) Why did billiard ball makers begin to look for alternatives to ivory? a) Ivory became too expensive b) A new material had been created c) A decline in elephant populations d) Ivory wasn’t heavy enough 4) What is the unifying feature of different kinds of plastics? a) Malleable and can be molded b) Highly flammable c) Flexible yet hardy d) Heavy and patterned 5) When was the first plastic created? a) 1907 b) 1833 c) 1942 d) 1868

A Brief History of Plastic (TEDEd)

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