Blast off into the wacky world of gadgets! Have you ever wondered what makes airplanes fly, how boats float, or why your doorbell works? * Would you like to build your own flying, floating, diving, spinning, howling, scooting objects? * Are you looking for a terrific science project that moves? If you answered "Yes!" to any of these questions, then RocketScience is for you. It shows you the science behind how things workby teaching you how to build a rocket boat, kaleidoscope, mousetrapcar, stethoscope, compass, fruit-powered battery, and lots of otherwonderful gizmos. All of the projects are safe and easy to make outof stuff you can find around your house. This amazing book covers a wide variety of science topics, including mechanics, air power, water power, electricity, magnetism, chemistry, acoustics, and optics.