. . . "Land transportation" . . . . . "Juvenile works" . "Demonstrates the principles behind various forms of transportation through projects for making wheels, cars, a motored vehicle, a locomotive, and other vehicles." . "Introduces the technology behind all forms of land vehicles from bicycles to high-speed trains. Includes activities for making simple vehicles." . . . . "Periodicals" . . . . . . "Land Transport"@en . "Land transport" . . .