The book introduces to simple machines and identify levers, inclined planes, wheels, and pulleys.'
On a trip to the airport store with his father, Pat notices the various signs that help them, including parking lot, and terminal D.'
Going to the airport - parking lot sign - Terminal D'
the books tell about pulley simply.'
Berbagai fakta tentang penemuan mobil.'
Explain how fire fighters fight fires in the city. In the country, in the forest, and on the waterfont'
Passenger liners, fire boats, tankers, barges, and busy tugboats-there's heavy traffic in Donald Crews' Harbour. This Beginning book includes a picture glossary to help anchor these ships in the minds of very young readers.'
Describes the process by which fiberglass boats are made, from the melting of glass marbles to create the fiberglass to the molding and finishing of the boat.'