plastic

Who created the first man-made plastic ?

• John Wesley Hyatt

• Hermann Staudinger

• Alexander Parkes

Before plastic, _____ was used to make billiard balls.

What was the first true synthetic plastic ?

• Parkesine

• Bakelite

• Celluloid

• Petrolium

What are artificial joints made of ?

• metal

• plastic

• wood

• plastic and metal

• wood and metal

What is plastic made of?

• crude oil

• vegetable oil

• cocoa oil

• peanut oil

What kind of plastic are contact lenses made of ?

• Polypropylene plastic

• Nylon plastic

• Polycarbonate plastic

• Hydrophilic plastic