3 feb 7 class science

plastics do not

• corrode

• break down into smaller pieces

• conduct electricity

• all of the above

Plastics are good

• heat conductor

• Electricity conductor

• insulators

• all of the above

word plastic means

• hard

• insulator

• easy

• soft

A very long molecule of plastic is called

• Plastic itself

• polymer

• polythene

• all of the above

This is used to insulate electrical equipment

• polythene

• polymer

• Bakelite

• all of the above

Ethylene and ______ combine together to form PVC.

• Carbon

• Oxygen

• Chlorine

• All of the above

To make flexible items,------- is added to the polymer.

• plasticiser

• polythene

• polymer

• oxygen

Shoes and tiles are made from

• polythene

• polymers

• PVC

• none of the above

Ethylene dichloride is made when

• ethylene and chlorine join

• polythene and ethylene join

• Both of th above

• None of the above