In this activity, students compare the viscosity of common household substances by measuring how fast marbles move through the liquids.

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

  • set up and carry out a test, keeping variables constant
  • use a graph to communicate their results
  • apply their understandings about viscosity to everyday situations.

Download the Word file (see link above) for:

  • introduction/background notes
  • what you need
  • what to do
  • discussion questions
  • extension idea
  • marble time chart.
    Published 12 April 2010