With Halloween around the corner, you’ll love this bubbly, color-changing, stinky chemical reaction.  All you need is a head of red cabbage, vinegar and baking soda for this mad scientist experiment!

Click here for more detailed instructions. If you want to avoid the stove, chop half a head of red cabbage and blend it with about 3 cups of water. Strain the liquid through a colander and then through a coffee filter in a plastic bag with one corner cut off. Blended cabbage juice makes longer-lasting bubbles and turns a slightly brighter shade of blue!