State the trend of plastic production between 1950 and 2015.

List two reasons why polyethylene terephthalate (PET) is often used for food packaging.

Explain how the molecular structure of thermoplastics is affected by heat.

Which plastic is most widely used in the production of water bottles?

A. Polyvinylchloride (PVC)

B. High impact polystyrene (HIPS)

C. Polyethylene terephthalate (PET)

D. Acrylonitrile butadiene styrene (ABS)

Compare the ease of recovery and disposal of thermoplastics and thermosetting plastics.

Describe the difference between a thermoplastic and a thermosetting plastic.

Which of the following raw materials can be used to make plastics and bioplastics?

I. Plant fibres (cellulose)

II. Crude oil

III. Petrol

A. I and II

B. I and III

C. II and III

D. I, II and III

What material would be used in the compression moulding process?

A. Polyvinyl chloride (PVC)

B. Carbon fibre

C. Acrylonitrile butadiene styrene (ABS)

D. Urea-formaldehyde

Outline why polypropylene (PP) is used as a material for a cell/mobile phone case.