. . "Juvenile works" . "Electronic books" . . . "Shares information on how to measure speed, including miles per hour, kilometers per hour, and revolutions per minute." . "Speed" . "Explore the measurement of both fast-moving and slow-moving items in this engaging volume. Both colorful visuals and welcoming text address the relationship between speed and distance and other facets of the measurement of speed throughout history." . . . . . . . . "JUVENILE NONFICTION / General" . .