A sandwich bag
Permanent markers
Baking soda
Vinegar
Paper towel or tissue paper
1. Using permanent markers to decorate the sandwich bag to look like a snowman.
2. Wrap 3 teaspoons of baking soda inside a piece of paper towel or tissue.
3. Place the baking soda packet inside the plastic bag.
4. Pour about 1-2 cups of white vinegar into the sandwich bag and seal the bag quickly. It should swell up quickly.
5. Stand back and watch it explode!