Angličtina
From invisible ink to listening devices, super projects for playing spy! Here's the book that shows kids how science is involved in the fascinating field of espionage. Spy Science contains 40 scientifically sound activities kids can do to explore the world of spies, from building a periscope to learning Morse Code-and even visiting the CIA's home page on the Internet! Whether they're mastering spy tricks and techniques, making special spy gadgets, or sending secret messages, kids will have fun learning science! * All activities are safe, easy to do, and require only common household materials * Includes tons of delightful illustrations and dozens of ideas for "More Fun Stuff to Do" "Spy Science in Action" sections show kids how the science they've learned is used in real-life JIM WIESE (British Columbia, Canada) is an elementary school science teacher and an educational coordinator for nonprofit organizations. He is the author of Roller Coaster Science, Rocket Science, and Detective Science, all available from Wiley.
