Did you know sour candy usually contains an acid (usually citric acid)? To investigate which candies contained the largest amounts of acid, we tested them using a base (baking soda). The more bubbles we observed, the more acidic the candy was! We tested Sour Skittles, original Skittles, Smarties, sour gummy worms, gummy bears, and sour watermelon candies.
Check out our results!