Today, I have been experimenting with felt tip pens and acidic solutions to create a Chromatography rainbow!
This is a simple experiment that both Reception and Year One can complete using things you most likely have in the kitchen.
I have added step by step photos of the experiment. You need: Felt tip pens, an acidic solution such as white vinegar or lemon juice (if you do not have these, nail polish remover works well) , kitchen roll and a bowl.
Colour your rainbow (or any other design) on the bottom of the paper and with your adult, pop it in the solution. Record what happens! How long does it take for the rainbow to appear? Year One; what is going on and why does this happen?
What would happen if you linked three bowls together with kitchen paper?
I hope you have fun with this experiment! Mrs Whybrow