Ages 9 to 12 years. The two dozen contraptions found in this handy resource can move across the land, over the sea, and through the air and can be assembled primarily from low-cost or free recycled materials, batteries, and a single motor. Some of the projects include constructing a hovercraft out of a Styrofoam plate, two corks, and binder clips; building a double-paddle wheeler out of paint stirrers, plastic bottles, and a pair of disposable knives; and turning bamboo skewers, checkers, and a drinking straw into a three-wheeled motorcycle. Each project is clearly explained through materials and tools lists, step-by-step instructions with photographs, and scientific background on the concepts being explored. Budding engineers will get experience working with tools, testing simple circuits, modifying and improving their designs, and building unique contraptions of their own.
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"Reminiscent of "Popular Science" magazine" . . . ." a book for dedicated enthusiasts." --"School Library Journal"
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fun for everyone
21 April 2012
By steven
- Published on Amazon.com
Format:Paperback
I found this book clear and easy to follow. The projects were well within the range of my 10 to 14 year-old students, and we had many successful adventures building and tinkering with the "roaches." We used this book as curriculum for enrichment activities at our after-school program, and did not find it overly technical. On the contrary, many of the projects are whimsical and straight-out fun. Our session became one of the most popular in the program. I'd recommend it to anyone looking to good fun with some motors, batteries, wire, tape and Popsicle sticks!
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