Key Stage 3
Meaning
A polymer is a long molecule made by reacting together several smaller molecules.
About Polymers
| This diagram shows several Ethene molecules reacting together to make a polythene molecule. | 
Different polymers can have different properties but generally polymers are:
- Easily molded into shape.
 - Solid at room temperature.
 - Plastic in behaviour.
 - An Electrical Insulator.
 
| Polymer | Properties | Application | 
| Polythene | Plastic, Strong, Ductile | Plastic shopping bags | 
| PVC | Plastic, Electrical insulator, strong | Plastic covering of electrical wires. | 
| Nylon | Plastic, Strong, flexible, ductile. | Clothing |