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

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

Introduces six simple machines, describing how they work in more complex machinery and how they are used every day.

Levers are everywhere. Readers will learn about historical and present-day uses of levers and how levers make countless everyday activities much easier. A simpl