After-school and out-of-school programs--as well as home schooling--have been growing steadily for nearly a decade, but instructors are still searching for high-interest content that ties into science standards without the rigidity of current classroom canon. The author draws on more than 20 years of experience doing hands-on science to facilitate tinkering: learning science while fooling around with real things. In this book, you'll learn: Tinkering techniques in key science areas How to let kids learn science with hands-on tinkering Engaging techniques for science learning at home, in school, or at a makerspace or library Step-by-step instructions for activities that don't end with a single project, but that provide many paths for "tinkering forward".