Join Dr. Mollie Cule on her mission to reassemble Axel the robot! Complete with step-by-step, illustrated instructions, this book introduces the amazing science behind some of the coolest activities out there, including creating a tornado and building a robot hand. In the process of helping Mollie repair Axel, keep your mind sharp by learning about electricity, binary math, density, and more. Perfect for at-home diversion, these activities hold the interest of even the most curious scientists and use materials that are readily available around the house and safe for kids. The projects vary in degree of difficulty, and it is noted when and where adult assistance should be requested. Join Mollie's adventure today!