Get ready to embark on a thrilling spy adventure with the National Geographic Secret Message Science Lab. This exciting spy kit is perfect for kids who love to decode messages and create their own secret codes. With easy-to-follow instructions, kids will have a blast experimenting with pH science as they learn to create a fizzy reaction and hide and reveal messages they've created.
Complete with 2 decoder wheels, 1 spy badge, 1 colorless crayon, sodium bicarbonate, citric acid, 4 pieces of pH paper, 2 sponges, 1 spray bottle, and 2 learning and activity cards, this kit has everything your little spy needs to complete 5 top-secret spy science missions. Not only will they have fun, but they'll also gain fascinating insights into spy history and the science at work in the experiments.
