KS3 Y8 Separation Techniques and Methods

Gap-fill exercise.

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Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button if available to get a clue. Note that you will lose points if you ask for hints or clues!
   boiling      chromatogram      chromatography      chromatography paper      coloured chemicals      condens      condensation      cool      different properties      dissolve      dissolves in water      distillation      does not      dragged      evaporate      evaporated      filter      filters through      gas state      gas to liquid      hromatograph      left behind      liquid state      mixture      properties      pure liquid water      pure salt      separate      slower      solvent      spread out      vaporati   

The chemicals in a can be separated. There are different separation methods for different mixtures.

Salt and sand is a .

To be able to salt from sand we need to know what their are.

Since salt and sand we can first add water to the salt then out the mixture.

Sand will be on the filter paper. The salt solution and the water can be by to leave .

Seawater is another .

To get pure water from seawater we first the water to change it from the to the . We then the water vapour so that it changes state from . This is called and we get . The eon and ing of water or any other liquid is called .

Coloured chemicals like ink can also be a mixture of differently . These chemicals can be separated by the method of . In cy the coloured ink is first deposited onto a special . A suitable is made to pass over this point. Because the coloured chemicals have when the solvent passes over it it is along. But different chemicals will be dragged to different extent. The heavier ones go . As a result the chemicals become . The pattern is called the .