"Can you imagine having to drive long distances in a car, train, or bus? Airplane travel changed all that, making travel much quicker, easier, and less stressful. This book addresses the four factors that make it possible for an airplane to fly: weight, lift, thrust, and drag. So, buckle up and enjoy your flight in this wonderful book about airplanes! This book will allow students to ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool" --Cover, p. 4.
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