Complete 5 top-secret spy science missions with the National Geographic Secret Message Science Lab! Kids will decode messages, create their own secret codes, hide and reveal messages using science, and experiment with pH reactions. Easy-to-follow instructions make each mission fun and educational, teaching spy techniques and science concepts along the way.
Complete 5 top-secret spy science missions using secret messages and decoder wheels
Two decoder wheels: 1 prefilled for 3 missions and 1 blank for creating secret codes
Reveal secret messages using pH paper and a citric acid solution
Hide secret messages using pH paper and a sodium bicarbonate solution
Hands-on learning of spy science techniques and chemistry concepts
Kit Includes: 2 Decoder Wheels (1 Prefilled / 1 Blank), 1 Spy Badge, 1 Pair of Goggles, 1 Colorless Crayon, Sodium Bicarbonate (0.56 oz / 16 g), Citric Acid (0.70 oz / 20 g), 4 Pieces of pH Paper, 2 Sponges, 1 Spray Bottle, Instructions and Learning Guide
Unisex product
Recommended Age: 8 years and above 
