Alchemist Academy: Secret Message Science

Start the school year with a little mystery on the Bookmobile! Young alchemists will become science spies as they use baking soda and water to write invisible messages—and reveal them with a simple acid-base reaction using shelf-stable “magic ink” made from grape juice concentrate or vinegar. Kids will learn the science behind pH reactions while crafting their own secret notes to take home. It’s back-to-school fun with a magical twist