Title: The inventor's handbook
Description: With this kit, children can create a message sender, a musical instrument, a timekeeper, a booby trap, and more--eight different inventions in all. The illustrated guide is accompanied by inventor's materials, including electric motor, propeller, gears, and much more, providing everything children need to invent incredible machines. Kid-tested and scientist-approved.
Subjects: Handbooks, manuals, Patents, Inventions, Design & technology, Children: Grades 3-4, Children's 9-12 - Science, Activity Books, Science & Technology - Inventions & Discoveries, Inventions, juvenile literature