Another type of material used to make toys is plastic. The first type of plastic, celluloid, was invented around 1870. It was cheap and could be easily molded. The first plastic baby rattle was made out of this material. The plastic that most toys are made from today is called polystyrene and it was invented in the late 1920s.
What type of plastic was made in 1870 ?
polystyrene
rubber
elastic
celluloid