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Materials and their properties presentation
Materials and their properties presentation
Materials and their properties presentation
Materials and their properties presentation
Materials and their properties presentation
Materials and their properties presentation
Materials and their properties presentation
Materials and their properties presentation
Materials and their properties presentation
Materials and their properties presentation
Materials and their properties presentation
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Materials and their properties presentation

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  • 1. Materials and their properties.
  • 2. What are materials?
    A material is a physical substance used to make things.
    Metals, plastics, ceramics, glass and fibres are some of the main categories for materials.
    If we look around, everything we see is made from a material, sometimes more than one ....
  • 3. For example:
    The clothes you are wearing are made from fibres.
    The chair you are sitting on is made from plastic.
    The windows in the school are made from glass.
    Can you see any other examples around you?
  • 4. Properties of materials
    A property of a material is a description of the characteristics which it has. They are adjectives which tell us about the material.
    Materials have different properties and characteristics depending on what they are used for.
    Some materials are hard, others are soft. Some are strong, others are weak.
  • 5. List of properties
    Here is a list of the properties which describe different materials:
    Shiny – It reflects light
    Strong – It won’t break easily
    Flexible – It can be bent easily without breaking
    Light - It doesn’t weigh much
    Heavy – It weighs a lot
    Coloured – Has colour
    Magnetic – It’s attracted to magnets
    Bendy - Flexible
  • 6. Hard – Something which can’t be bent easily
    Brittle – It’s hard but will break easily
    Malleable – It can be shaped easily
    Magnetic – It’s attracted to magnets
    Bendy – Flexible
    Transparent – Something you can see through
    Translucent – Something you can partially see through
    Opaque – Something you can not see through
    Conductor – It allows heat or electricity to pass through
    Insulator – It doesn’t allow heat or electricity to pass through.
  • 7. Which of the previous words could you use to describe:
    A) a pencil...
    Hard, light, opaque
    B) A window
    Transparent or translucent, hard, brittle
    C) A piece of paper...
    Light, opaque, malleable
    D) A fork...
    Shiny, hard, magnetic, opaque, conductor
  • 8. Materials can be categorised into groups. One of the main groups is...
    Shiny
    Strong
    Good conductors of heat and electricity
    METALS
    Some are magnetic
    Usually opaque
    E,g aluminium, copper, iron, lead...
  • 9. These properties make metals suitable for many things...
    Tools
    Bridges
    Coins
    Knives, forks and spoons
    Can you think of any other uses of metals?
  • 10. Uses and properties..
    Q) Why is copper suitable for electrical wiring? What properties must it have?
    - Good conductor
    of electricity
    - It is strong.
  • 11. Why are saucepans made from metal? Which properties make it suitable for the use?
    - It is a good conductor or heat.
    - It is It does not melt with high temperatures.
    - It is strong

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