Your Teeth Are Simple Machines

The Labbits and Pumpkinhead want to bite into a sandwich
with their wedge-shaped, simple-machine teeth.

So, did you know that your teeth are simple machines? Believe it or not, they are wedges! I had no idea, until I read Simple Machines by Dana Rau.

This book gives a great introduction to simple machines, covering wheels, pulleys, levers, inclined planes, wedges, wheels, and screws. It uses examples of these machines that kids are likely to encounter in their real lives. Includes color pictures and illustrations. 48 pages.