Help your readers discover the powerful science behind force. Various forces, such as gravitational force and applied force, explain how and why objects move the way they do. Through informative and concise main text, readers expand their knowledge of this essential science curriculum topic. Creative, full-color design elements, useful sidebars, thought-provoking fact boxes, and a helpful glossary add extra insight to give readers a better understanding of how force is applied to the world around us.