Patterns of Motion

Are you sitting still? You might think so, but you’re not. Earth travels through space at 500,000 miles per hour. But it is not alone. Everything—stars, planets, even chunky balls of ice—is in motion. Why do we move? Where are we headed? Scientists have made fascinating discoveries and continue to search for more answers. Titles will captivate both teen and tween readers as they do a deep explorat...