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Weight 31.2 kg
Brand

National Geographic Secret Message Science Lab

SKU:

$22.90

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About this Item

  • 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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