LeversBook - 2011
"A foundational look at levers, explaining how these simple machines work and describing some common examples, such as crowbars, that have been used throughout history"--Provided by publisher.
Publisher: Mankato, Minn. : Creative Education, c2011
Edition: 1st ed
Branch Call Number: j 621.8 B6662L 2011 Beginning Facts
Characteristics: 23,  p. : col. ill. ; 23 x 26 cm
From Library Staff
From seesaws to crowbars, levers lift.