If you need some ideas try
these kitchen science experiments or «Kitchen Science Lab for Kids: 52 Family Friendly Experiments from Around the -LSB-...]
-LSB-...] 50
kitchen science experiments, by Science Sparks — The kitchen is such a great place to explore science with -LSB-...]
They can find out in
this kitchen science experiment.
Simply Google «
kitchen science experiments» and you will find a wealth of easy ideas online.