National Geographic - Secret Message Science Lab
Out of stock
Regular price
$19.99
Sale price
$19.99
Regular price
$29.95
Unit price
per
Couldn't load pickup availability
- Fully secure checkout
- Trusted by thousands
- Rated and reviewed
Want next day delivery? Be quick!
Sorry, it's out of stock.
But we can let you know when it's back in.
Question about this product?
We're happy to help.
33% offSold out
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
