National Geographic: Secret Message Lab

Kids will gain insight into pH science and learn fascinating facts about spyhistory.

Features:

- Two Decoder Wheels – Kids will get 3 decoder wheel missions, decipheringmessages with a prefilled decoder wheel and creating their own decoderwheel/secret code language.
- Reveal a Secret Message – Using pH paper and a citric acid solution, kidswill be able to reveal a secret message they’ve written with a colorlesscrayon.
- 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 acolorless crayon

Suitable for Ages 8