In I/GCSE Chemistry, we will learn about Properties of Materials.
Properties
Different materials behave in different ways because they have different PROPERTIES. Solid materials can differ in one or more of the following ways:
- Melting point
- Strength in tension (when pulled)
- Strength in compression (when pushed)
- Stiffness
- Hardness
- Density
Refer to I/GCSE Chemistry, many of the products that we use are made using PLASTICS, RUBBERS and FIBRES. The SUTABILITY of a material to a particular job depends on its properties.
Unvulcanised Rubbers
Properties:
• Low tensile strength
• Soft
• Flexible / Elastic
Uses:
• Erasers
• Rubber bands
Vulcanised Rubbers
Properties:
• High tensile strength
• Hard
• Flexible / Elastic
Uses:
• Car tyres
• Conveyor belts
• Shock absorbers
Plastic- Polythene
Properties:
• Light
• Flexible
• Easily moulded
When it comes to I/GCSE Chemistry, the uses of it:
• Plastic bags
• Cling film
• Water pipes
Plastic – Polystyrene
Properties:
• Light
• Insulation properties
• Water resistant
Uses:
• Meat trays
• Egg cartons
• Coffee cups
• Packaging
End of Part 1. Go to Part 2~