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by Jim Wiese
Spy Science Book is available for £11.54 at Debenhams.
Available at Debenhams
This text contains 40 different scientifically-sound activities children can do to explore the world of spy science, such as: writing in invisible ink; building a listening device; sending a message in Morse code; and visiting the CIA's home page on the Internet.
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Patricia Billings
Patricia Billings
Patricia Billings
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Milet Publishing
