Rhyming text and lift-the-flap illustrations depict a variety of things that move on wheels, and invite the reader to guess their identity. Presented in English and French.
Explains the science of how wheels and cranks work, discussing real-life examples such as car wheels, bicycle wheels, and crank handles, and includes activities that illustrate the principles covered.
Explains in basic terms the physical principles behind the use and operation of wheels and gears, with diagrams that provide several examples involving doorknobs, steering wheels, and pulleys.