Spy Science: 40 Secret-Sleuthing, Code-Cracking, Spy-Catching Activities for Kids

Spy Science: forty Secret-Sleuthing, Code-Cracking, Spy-Catching Routines for Youngsters

Sh-h-h-h-h-h!! Best Key... Crack the code of superspy science entertaining! Make your individual spy sunglasses Create messages with invisible ink Hook up a solution alarm, and considerably much more! Learn how spies use science to keep—or uncover—top secrets and techniques. Find out how to go below cover, grasp Morse code, and even develop products to see and listen to by means of walls! These and dozens of other fun-stuffed routines give you an inside appear at the science behind spy devices and tricks of the trade. All the activities are co

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