Secret Messages Mini Lab - Slinky Science
March 31st, 2008 | by admin |Cryptography- the spy science of secret messages-is everywhere secrets are kept: on the Internet, in bank ATMs, businesses, the military, and more. Learn the secrets to keeping secrets. Use codes, ciphers, and hidden messages to communicate with your friends in over a dozen sneaky ways. Ages 8 and up.
Reviewer Averages (scale of 1 to 10):
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- : 7.5