Questions 1-3

Complete the summary below. Choose ONE WORD ONLY from the passage for each answer.
Write your answers in boxes 1-3 on your answer sheet.

Some plastics behave in a similar way to 1) in that they melt under heat and can be moulded into new forms. Bakelite was unique because it was the first material to be both entirely 2) in origin, and thermosetting.
There were several reasons for the research into plastics in the nineteenth century, among them the great advances that had been made in the field of 3) and the search for alternatives to natural resources like ivory.

Questions 4-8

Complete the flow-chart. Choose ONE WORD ONLY from the passage for each answer.
Write your answers in boxes 4-8 on your answer sheet.

4 stage one resin, called

5 (e.g. cotton, asbestos)

6

7 Bakelite

8 apply intense heat and