6.Soap
Bars of soap can be relatively cheap, so why not get some and show your kids what happens when you put them in the microwave!
5.Giant Bubbles
Let your children create massive bubbles using a meter of string, two utensils (wooden spoons, sticks, dowels, anything really), a weight such as a rock — tie these in a triangle shape, as seen in the picture above. Once you’ve created the bubble-maker, use 1 gallon (4 liters) of hot water, 1/4 cup (60 ml) of glycerin and 1 cup (250ml) of dish washing liquid.