3 A B C D E F G H I J K L M N O P Q R S T U V W Y

Polymers

The plastics used in everything from food packaging to children’s toys are polymers, but the term encompasses a much wider group of materials than that. Other polymers include polystyrene, and the thickeners in shampoo which give them their gel-like consistency. The technical definition of polymer also includes natural materials such as wool, silk, natural rubber, and cellulose.