What is inside a police car? How does an airplane fly? Why are diggers yellow? Find out in this first book about planet Earth, with 100 QUESTIONS and answers, and 70 LIFT-FLAPS to open. DISCOVER how a hot air balloon works, LOOK INSIDE a limo, FIND OUT about the speed of sound, LEARN about all kinds of emergency vehicles, and TAKE A CLOSER LOOK at the inside of an engine.
juvenile
written by Heather Alexander ; illustrated by Andrés Lozano
Includes 70 lift-flaps.
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