Quiz on Plastics

Why are so many products made out of plastic instead of other materials?

• Because they are expensive and rare

• Because they are durable and lightweight

• Because they are heavy and fragile

• Because they are difficult to shape

The two broad categories of plastics are:

• Thermoplastics and Thermosets

• Metals and Alloys

• Ceramics and Glass

• Fibers and Fabrics

Thermoplastics can be:

• Melted and reshaped

• Broken and discarded

• Frozen and shattered

• Burned and evaporated

Thermoplastic is comparable to:

• Ice

• Metal

• Wood

• Glass

Two examples of thermoplastics would be:

• Nylon and Polyethylene

• Steel and Iron

• Cotton and Wool

• Sand and Clay

Thermoset is comparable to an:

• Egg

• Balloon

• Rubber band

• Sponge

An example of thermosets would be:

• Bakelite

• Aluminum

• Silk

• Paper

Injection molding is when you inject plastic:

• Into a mold

• Into a balloon

• Into a bottle

• Into a bag

Vacuum forming uses a mold along with:

• Heat and a vacuum

• Water and a pump

• Air and a fan

• Light and a lens

Plastikos - Greek word meaning to:

• Mold

• Break

• Paint

• Cut