By Ben Grossblatt and the Scientists of Klutz Labs
Is Build Your Own Gotcha Gadgets a science kit or the ultimate prank book? This revised hi-tech hijinks kit features an improved circuit board, better pranks, and twice as many gut-busting sounds as the original. Build the basic Gadget, then follow the simple instructions to wire a motion sensor, door alarm, light sensor, or push-button device. After you program it with one of four funny "gotcha" sounds, you can foil late-night raids on the fridge or booby trap your little brother's lunch bag. Along the way, you'll learn the principles of electronic circuitry. It’s science in the service of immaturity - a veritable science fair exhibit with the soul of a whoopee cushion.
Includes 32 page book, circuit board, speaker, LED, battery clip, photoresistor, switches, project wires, alligator clip, gadget dock, gadget case, 2 double-sided gadget covers, and 2 double-sided door hangers.
Mixed media activity book, 32 pages.
Requires 3 AAA batteries (NOT INCLUDED).