Is the ink in your pens really just one colour? Or is it a mixture of different colours? You can find out using this simple chromatography experiment.

Are felt tip pins really all they seem to be? Is an orange pen actually orange? Join Ross, an Education Coordinator from the Royal Society of Chemistry, to find out!

You will need:

  • Felt tip pens 
  • Kitchen Roll
  • A bowl or cup
  • Water