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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 theyve 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 theyve written with acolorless crayon

Suitable for Ages 8+