Cover image for Simple machines
Simple machines
Title:
Simple machines
Personal Author EPSB:
Summary:
"Machines help make work easier, like when you need to lift something heavy or reach way up high. There are six simple machines: the lever, the wheel and axle, the pulley, the ramp, the wedge, and the screw. Can you adjust a seesaw to lift an elephant? What happens when you combine two or more simple machines? Read and find out!"Amazon website.
Year Published:
2015
Physical Description:
pages cm.
Added Author:
ISBN:
9780062321480

9780062321473
Publisher:
New York, NY : Harper, an imprint of HarperCollins Publishers, [2015]