"Through exciting science projects and activities kids can easily do at home or school, tomorrow's scientists and engineers will have a blast learning about simple machines and how they make daily life easier. Book includes: biographical spotlights on famous scientists and inventors; introduction to each simple machine, including real-world examples & history; materials & tools list; infographics; step-by-step instructions and photos; safety information; timeline; glossary; and index."--Provided by publisher.