Upcycle, recycle, and/or repurpose your stuff and engineer your way out of all kinds of sticky situations--all while learning about science and sustainability as you do it! Make cool lantern lights for your room, discover a tried-and-true brain freeze cure, learn how to boost your memory power, and more. In this easy-to-follow guide, kids get tips and tricks for upcycling and reusing old stuff, as well as hands-on activities, fun facts, and insights from professional-grade life hackers who use their problem-solving skills to change the world.

By the end, you'll be able to hack your way through all kinds of problems, from a messy backpack to stage fright, a drippy ice pop to smelly shoes!