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  • In this activity, students watch the Brainiac video Jon Tickle walks on custard on YouTube to learn more about non-Newtonian fluids at work. The activity includes a number of strategies to deepen student interaction with video content.

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

    • discuss the differences between Newtonian fluids (‘normal liquids’) and non-Newtonian fluids
    • explain the scientific meanings of stress and strain as they relate to fluids
    • discuss how non-Newtonian fluids change their viscosity or flow behaviour under stress
    • explain why Jon Tickle is able to walk on custard but not on water.

    Download the Word file (see link below) for:

    • background information for teachers
    • teacher instructions
    • student instructions.

      Published 12 April 2010, Updated 15 February 2018 Referencing Hub articles
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