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National Geographic Secret Message Science Lab

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    S$ 22.90 S$ 22.90 22.900000000000002 SGD

    S$ 22.90

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    National Geographic Secret Message Science Lab

    S$ 22.90 S$ 22.90 22.900000000000002 SGD

    S$ 22.90

    Add to Cart
    • 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.

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