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

Read and find out about six simple machines—the lever, the wheel and axle, the pulley, the ramp, the wedge, and the screw—in this colorfully illustrated non

"Describes how simple machines are used in construction and how they make work easier. Includes experiments"--Provided by publisher.

"Simple Machines! introduces kids to the concept of mechanical advantage and harnesses kid-power by inviting them to build machines of their own design. This bo