Text and pictures introduce the wheel, a simple machine used primarily to make it easy to move heavy loads.
  • ISBN10 158952439X
  • ISBN13 9781589524392
  • Publish Date 3 December 2005 (first published 1 December 1997)
  • Publish Status Out of Print
  • Out of Print 2 July 2021
  • Imprint Rourke Publishing (FL)
  • Format Hardcover (Library Binding)
  • Pages 32
  • Language English