Get to Know Wedges Wedges are used to separate, lift, or hold things in place. One of humankind's most ancient tools, the wedge has a place in almost everyones daily life. Learn more in this absorbing new title.

 

This book features in the following series: Get To Know Simple Machines, Simple Machines .

There are 32 pages in this book. This book was published 2009 by Crabtree Publishing Co, Canada .