Most of you have probably done this in science class at one point...it's loads of fun for the kids and would go GREAT with a Halloween, Harry Potter or wizard party.
Place a bowl or cup on a pan or tray (or you'll get potion all over the place!)
Fill the bowl with 2 tablespoons of water and stir in a tablespoon of baking soda until it dissolves.
Measure 2 tablespoons of vinegar into a separate cup.
Pour the vinegar, all at once into the water/baking soda mixture and watch your potion bubble up!
WHY'D THAT HAPPEN??
The bubbles that are created are filled with carbon dioxide. The carbon dioxide is a gas that forms when the
vinegar (an acid) reacts with the baking soda (a base). For all you bakers out there, this is also what makes
cakes and quick breads (the no yeast kind) get all nice and fluffy.
For those of you who don't allow Halloween, potions, witches or brews, this craft recipe is still a really NEAT