Author(s): Kelly Gaffney Pub: Raintree Pack Qty: 0 (Hardback) ISBN: 9781474792660 - New
171mm x 216mm x 8mm
Publication:
0
Pages: 0
Ramps, screws, wheels, pulleys, wedges and levers are all simple machines. Learn about what these machines are and what makes them work. Also find out how to spot simple machines in action all around you!
