Simple Machines (Reading Essentials Exploring Science)
By Unknown Author.
Description
Teaches how work becomes easier with levers, pulleys, inclined planes, wedges, screws, or wheels and axles. - from Amzon
ISBN(s)
0756962773, 9780756962777
By Unknown Author.
Teaches how work becomes easier with levers, pulleys, inclined planes, wedges, screws, or wheels and axles. - from Amzon
0756962773, 9780756962777
