Last updated April 11, 2019 at 1:55 pm
Have you ever wondered what to do with the little bit of milk left at the bottom of your bowl? Use a chemical reaction to turn it into a swirling rainbow of colour.
What you’ll need:
2 x white plates
1 x jug of tap water
Full cream milk
1 x small bottle of dish detergent
1 x cotton bud/tip