Forces and Motion

Learning about forces and motion is thrilling! Cyclists battle gravity to climb steep hills. Fighter pilots wear special suits to combat incredible g-forces. Even simple machines have cool uses on construction sites! Readers will learn all about gravity, friction, and more through explanations using both familiar and extraordinary situations. Bright, colorful photographs will keep readers engaged as the forces are shown at work in exciting ways, such as in skydiving, rollercoaster construct...