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    In this activity, students test a variety of commercially available table salts for the presence of iodine – a micronutrient essential for health and wellbeing.

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

    • recognise the difference in structural terms between the element iodine and one of its ionic forms known as iodide ion
    • describe a simple chemical test to detect the presence of iodine in iodised salt and explain in simple terms the chemistry underlying the test
    • effectively manipulate simple laboratory equipment
    • successfully test commercially available table salts for the presence of iodine
    • demonstrate an understanding of the role iodine plays in the body.

    Download the Word file (see link below) for:

    • introduction/background notes
    • what you need
    • what to do
    • student worksheet.
      Published 18 March 2011 Referencing Hub articles