The reaction of baking soda and vinegar is the basis for this simple «magic trick».
Reward: Shake Up Gold!
Step 1 – Put a couple drops of food coloring onto spoons.
Step 2 – Cover the food coloring with baking soda.
Step 3 – Fill glasses (half full) of vinegar.
Step 4 – While saying magic words, stir the baking soda into the vinegar.
Fuente: East Coast Mommy