complete the following crossword with the help of the clues provide Across:5. First artificial made fire.6.Join together to form polymers.7.Made of ester units.Down :1.Terylene and cotton blend.2.An example of a themosetting plastics.4.Used to make parachutes.

Across:1.fibre that is used as synthetic wool.2.Aplastic used for making water bottels.3.Along chain made of smallrepeating monomers.4. Another name for this semi-synthetic fibre is artificial silk.Down: 5. Atype of fibre that is naturally obtained from is cocoon.6.Asynthetic fibre classified as polyster. 7. A polymer used for making rope.