If you have a little one who is fascinated with colors and fireworks, this simple experiment is for you (and your child). You most likely have everything you already need in your cupboard for these fireworks in a jar: oil, water, and food coloring! If you haven’t already,
1. Fill your jar 3/4 of the way full with warm water.
2. In a separate bowl, mix a 3-4 tablespoons of oil and several drops of different colors of food coloring (I used 4 drops of each color: red, yellow, blue, and green).
Food coloring dissolves in water but not in oil. Because the oil is less dense than the water, it will float at the top. The colored droplets will begin to sink because they are heavier than the oil. Once they sink into the water, they will begin dissolving into the water (which looks like a tiny explosion).