"A hands-on approach introduces young scientists to the lever. Science theory and practical, fun projects teach the physics and the technology behind this simple machine. Important science curriculum is explained through historical and contemporary examples of levers. Step-by-step projects range from the simple to the more challenging."-- Provided by publisher.

What is a lever? -- How levers work -- Different levers -- Levers in history -- Make some weighing scales -- Changing forces and motion -- Magnifying motion -- Everyday levers -- Levers in complex machines -- Facts and fun.