9781422274743

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WORDS TO UNDERSTAND Words To Understand: These words with their easy-to-understand definitions will inc the reader’s understanding of the text while building vocabulary skills. Sidebars: This boxed material within the main text allows readers to build knowledge gain insights, explore possibilities, and broaden their perspectives by weaving togeth additional information to provide realistic and holistic perspectives. Educational Videos: Readers can view videos by scanning our QR codes, providing t with additional educational content to supplement the text. Examples include news coverage, moments in history, speeches, iconic sports moments, and much more! aerodynamics: the qualities of an object that affect how e sily it is able to move through the air airfoil: a body (such as an airplane wing or pro ller blade) designed to provide a desired reaction force when in motion relative to the surrounding air turbulent: characterized by agitation or disturbance

Text-Dependent Questions: These questions send the reader back to the text for mo careful attention to the evidence presented there.

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Research Projects: Readers are pointed toward areas of further inquiry connected to chapter. Suggestions are provided for projects that encourage deeper research and a