Nat Geo Secret Message Lab
Kids will gain insight into pH science and learn fascinating facts about spy history.
includes
- 1 Prefilled Decoder Wheel1 Blank Decoder Wheel1 Spy Badge1 Colorless CrayonSodium Bicarbonate (0.56 oz / 16 g)Citric Acid (0.88 oz / 25 g)4 Pieces of pH Paper2 Sponges1 Spray BottleLearning Guide and Instructions
product features
- Two Decoder Wheels – Kids will get 3 decoder wheel missions, deciphering messages with a prefilled decoder wheel and creating their own decoder wheel/secret code language.
- Reveal a Secret Message - Using pH paper and a citric acid solution, kids will be able to reveal a secret message they’ve written with a colorless crayon.
- Hide a Secret Message – Using pH paper and a sodium bicarbonate solution, kids will be able to hide the secret message they’ve written with a colorless crayon.
Item# 38951
