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General Book Search for "9780471146209"

General Books
School Books

Author : Jim Wiese,Ed Shems
Paperback
Published : Tuesday 1 October 1996
ISBN : 9780471146209
Price : €14.03

Description

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.