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travels along these three axes. The angle directly determines how far the ball will go along the vertical axis and horizontal axis. Balls thrown in a straight line are quick and direct. When thrown with tremendous force, these balls can travel long distances.

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Words To Understand: These words with their easy-to-understand definitions wil the reader’s understanding of the text while building vocabulary skills. On the other hand, balls thrown with little force but at a high angle have lots of hang time in the air but don’t travel long distances down the field. Sidebars: This boxed material within the main text allows readers to build knowl gain insights, explore possibilities, and broaden their perspectives by weaving to additional information to provide realistic and holistic perspectives. Educational Videos: Readers can view videos by scanning our QR codes, providi with additional educational content to supplement the text. Examples include ne coverage, moments in history, speeches, iconic sports moments, and much more! Meet Leland Melvin, Former NFL Player and NASA Astronaut Leland Melvin has always loved science. H graduated wi h a degree in chemistry from the University of Richmond in Virginia, where he also played football. The Detroit Lions selected Melvin in the 1986 NFL college draft. Later in 1998, he was selected for another really cool group—he became a NASA astronaut. Text-Dependent Questions: These questions send the reader back to the text fo careful attention to the evidence presented there. The angle at which a ball is thrown is a critical element behind the success of a pass.

Melvin finally got his chance to go into space in 2008 aboard the STS-122 Atlantis Shuttle mission, the tw nty-fourth shuttl to visit the International Space Station. The main objective of STS-122 was to deliver and install the Columbus scientific laboratory module, built by the European Space Agency. Melvin’s NFL training likely came in handy during the three spacewalks it took to install the lab. Two years later, in October 2010, Melvin was named as associate administrator for the Office of Education, overseeing NASA’s education programs to inspire a new generation about science and technology. He retired from NASA in February 2014.

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

Series Glossary Of Key Terms: This back-of-the-book glossary contains terminol used throughout this series. Words found here increase the reader’s ability to rea comprehend higher-level books and articles in this field.

12 CONNECTING STEM AND SPORTS | FOOTBALL