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Hardness, Solubility, Transparency

Science: Year 5 & 6 National Curriculum, topic 3.1.2

Hardness, Solubility, Transparency

Different materials are used in different ways depending on their properties.

Hardness

Hardness

  • Some materials are very hard.
  • Examples: Diamonds.
  • Some materials are soft.
  • Examples: Clay.
Solubility

Solubility

  • Some materials are soluble (dissolve in water).
  • Examples: Salt and sugar.
  • Some materials are insoluble (do NOT dissolve in water).
  • Example: Sand.
Transparency

Transparency

  • Some materials are transparent (let light through).
  • Example: Glass.
  • Some materials are opaque (do not let light through).
  • Example: Wood.

Test yourself on Hardness, Solubility, Transparency

  • What is the word used to describe materials that let light through?

  • What type of material will dissolve in water?

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