Rookie Read-About Science Simple Machines

The natural world comes alive for young readers with Rookie Read-About Science!

"We use machines every day.  Machines help make our lives easier.

Some machines, such as lawn mowers and vacuum cleaners, have many parts.

Other machines have few parts.  They are called simple machines.

Levers, inclined planes, wheels and axles, and pulleys are four kinds of simple machines..."

Rookie Read-About Physical Science series introduces the youngest readers to physical science concepts. Each book features critical-thinking questions throughout the text; a simple, hands-on experiment; a glossary and more.