Simple Machines
2 total works
This book is suitable for ages 7 to 8 years. 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 everyone's daily life. Learn more in this absorbing title.
Inclined planes are used where you least expect it! Read all about inclined planes in this enthralling new book! See inclined planes at work in ramps and roller coasters, as well as their other applications and history.