“National Geographic – Secret Message Science Lab”

Description

With the National Geographic: Secret Message Science Lab, kids will gain insight into pH science and learn fascinating facts about spy history. 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 colourless 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 colourless crayon. Ages: 8+ years