This is a classic investigation into the effect of different liquids on your teeth. If you can’t get easy to access to some teeth (ask your local tooth-fairy) – then an eggshell can provide a simple stand-in. Clean (cooked & boiled) chicken bones can...
This fun, but gross, practical gives children a model of some of the processes that go on in our bodies when we digest our food. What you need Each group of children will need: 1/3 banana, 1 cream cracker, Paper cup with hole in the bottom, 50ml water, Clear vinegar,...