Describes automobile parts, engines, types, jobs, racing, and safety; shows what these vehicles looked like when they were first invented; and features quiz questions.
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 the science of how springs work, discussing real-life examples such as pogo sticks, locks, spring balances, and pinballs, and includes activities that illustrate the principles covered.
Explains the science of how pulleys and gears work, discussing real-life examples such as cranes, drive belts, drills, and mountain bikes, and includes activities that illustrate the principles covered.
Presents an introduction to the concept of growing, in simple text with illustrations, describing how animals and humans grow to a variety of shapes and sizes.
