Author : Katie Marsico
Publisher : Unknown
Page : 24 pages
File Size : 50,8 Mb
Release : 2017-08
Category : Electronic
ISBN : 1510520651
Pulleys by Katie Marsico Pdf
Did you know that pulleys help people lift and lower loads that might be too heavy for them to move on their own? Learn about the two types of pulleys and more in Pulleys, a My First Look at Simple Machines book.