The differences between thermoplastics and thermosetting plastics are explained using examples of jewellery made from thermosetting plastic. Thermosetting plastics cannot be remoulded whereas thermoplastics can be remoulded any number of times. We see the injection moulding process and learn about other moulding methods, such as blow moulding and vacuum forming.

First broadcast:
30 November 2007

Could be used to introduce a lesson on plastic forming. Pupils could make notes on the different types of plastic forming, before using a method available to them, such as vacuum forming, to create their own plastic shapes.