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Put a Fan in Your Hat!: Inventions, Contraptions, and Gadgets Kids Can Build
Put a Fan in Your Hat Inventions Contraptions and Gadgets Kids Can Build Author:Robert Carrow Experiments and activities for middle school students using electronics and physics concepts to produce practical, often zany gadgets. Each activity concludes with a "What if... " challenge, motivating the student to build "the invention the world is waiting for" and to win the Learning Triangle Press SciTech Sweepstakes.