Materials: a clear container, popping corn, 2 1/2 – 3 cups of water, 2 Tbsp. of baking soda, 6 Tbsp. of white vinegar, food coloring (optional)
Fill your jar with water and add a couple drops of food coloring.
Add your baking soda and stir well until it is all dissolved.
Add a small handful of popping corn kernels.
Add the vinegar and watch the corn start to hop up and down!