Incoming Resources
- The wheel and how it changed the world, Ian Locke
- Smash!, Wile E. Coyote experiments with simple machines, by Mark Weakland ; Illustrated by Christian Cornia
- Tires, spokes, and sprockets, a book about wheels and axles, by Michael Dahl ; illustrated by Denise Shea
- Get it in gear!, the science of movement, Barbara Taylor
- Levers, Angela Royston
- Scoop, seesaw, and raise, a book about levers, by Michael Dahl ; illustrated by Denise Shea
- What do wheels do all day?, April Jones Prince ; illustrated by Giles Laroche
- Wheels around, Shelley Rotner
- Levers and pulleys, by Emily Sohn and Frederick Fellows
- Levers, by Anne Welsbacher
- Ramps and wedges, Angela Royston
- Wedges, by Anne Welsbacher ; consultant, Phillip W. Hammer
- Cut, chop, and stop, a book about wedges, by Michael Dahl ; illustrated by Denise Shea