Find out how the six simple machines - levers, pulleys, wheels, planes, wedges, and screws - work and how engineers put them to use. Build your own pulley system, experiment with levers, and more!
More in This Series
Why Buy Direct From Kidsbookfort?
We accept Apple Pay and all major credit cards via Square invoices
We offer personalized book recommendations - just ask
We offer 1/2 price damaged book replacements
We offer special bulk order pricing - contact us for details
