"Is it easier to move produce with a lever or a wheel and axle? Readers will learn about how simple machines work in this book for early readers."--

Is it easier to move heavy box with an inclined plane or wheels and axles? Readers will see how a group of kids compares two simple machines and decides which one does a better job at transporting the box. This book supports engineering design standards for primary grades in the Next Generation Science Standards.

Describes two simple machines--pulley and inclined plane--and explains how they are utilized to make work easier.