Magic Milk Paint idea from Modern Parents Messy Kids. This is another one of those awesome 'science meets art' activities for children, and you only need milk, dishwash and food colouring to do it. Looks fun :)
Secretly wrap an object in a ball of clay, and mold it into a ball. Have the child poke the clay ball with the toothpick 20 times then try to guess what is in it based on size and shape of the object inside.
Cool science experiments for kids don& have to be complicated--there are so many fun ones you can do with the items in your kitchen! Kitchen science experiments may be easy to set up, but they are jam-packed full of learning.