Experiment and hypothesize just like Ben Franklin! Arranged around Ben Franklin's subjects of interest, chapters cover observation & innovation, weather, electricity, music, printing, and light & sound. Activities include a short introduction, materials needed list, procedure, and questions to examine afterwards. Easy, fun, and educational, common household materials are used. Learn how to build an optical toy shop, make a weather station, create an orchestra, building your own printing press, and more! 131 reproducible pages, indexed, softcover.