Gr 3–8—This series quickly ramps up in difficulty, moving from leather-wrapped pens to a flipping gymnast model powered by a magnetic motor. Detailed instructions and prolific process photos help builders make their way through these projects, but adult assistance may be required nonetheless. Most call for specialty materials available at hardware or craft stores. While almost all of these crafts demonstrate one or more scientific principles (e.g., magnetism, oxidation, transfer of energy), the books do not directly address these concepts.
After brief introductions, workshop tips, and necessary tools, each technology or engineeringthemed volume offers four progressively challenging projects manipulating materials such as batteries, LEDs, wire, or fire. More how-to than why, the books provide clear instructions for specific exercises without explaining how the materials or projects work. Close-up photographs illustrate texts. Glos., ind. Review covers the following Checkerboard Library: Cool Industrial Arts titles: Cool Battery & Electricity Projects, Cool Engine & Motor Projects, and Cool Engineering Projects.
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