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    In this activity, students use a simple paper chromatography method to separate and identify the components present in commercially available food colouring.

    By the end of this activity, students should be able to:

    • successfully use paper chromatography as a method of separation
    • identify some of the typically used food colouring agents
    • describe in simple terms the food additive numbering system
    • research the reported effects colour additives have on children’s behaviour.

    Download the Word file (see link below) for:

    • introduction/background notes
    • what you need
    • what to do
    • ideas to extend your students.
      Published 18 March 2011 Referencing Hub articles