Download the checklist from the Stats tab above and gather the necessary items from your kitchen.
Separate your candy into two general categories - sweets, like chocolate, and sours, like gummies and sweet tarts. Stir two tablespoons of water into about 6 ounces of water. Start by adding one of your sour candies to a small cup and then adding the baking soda solution. Did it bubble? Make a note of the reaction.
Continue this process with some of your sweet candy. Note what happens.
Finally, try mixing your raw ingredients with the baking soda - sugar, salt, citric acid, lemon juice. By now you should have determined what causes bubbles when mixed with baking soda - and established the basic science between the combination of acids and bases.