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Curriculum Ideas & School Examples

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KS2: Science: Sc3: Materials & Their Properties: 3 - Separating mixtures of materials

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Separating mixtures of materials

3. Pupils should be taught:

  1. how to separate solid particles of different sizes by sieving [for example, those in soil]
  2. that some solids [for example, salt, sugar] dissolve in water to give solutions but some [for example, sand, chalk] do not
  3. how to separate insoluble solids from liquids by filtering
  4. how to recover dissolved solids by evaporating the liquid from the solution
  5. to use knowledge of solids, liquids and gases to decide how mixtures might be separated.


Make links to video clips such as BBC Science clips- Filtering the River Thames, Melting Metals to inform and motivate pupils.

Try setting up a forum icon forum or wiki icon wiki for children to describe how they would separate materials e.g. via sieving, filtering and evaporation.



 Click here to return to KS2 Science overview.


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