Investigate the size of our Solar System with physicist Katherine Leech by making your own scale model - using toilet roll!

What you will need:

  • Toilet roll
  • Coloured pens

Health and safety

  • Non-toxic colouring pens should be used

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Image credit: Wikimedia Commons – Solar System: The International Astronomical Union/Martin Kornmesser

About the researcher

Katherine Leech is the Outreach Coordinator for the University of York’s Department of Physics.