Grade 7

The high maneuverability and speed of jet fighters cause pilots to experience g-forces nine times that of gravity! Students will learn about the history, technology, and future of the fastest More →

On May 12, 2008, a strong earthquake rocked Beichuan, China, destroying buildings and entire neighborhoods. When Beichuan's high school collapsed, 16-year-old Li Anning and her friends were… More →

Top Fuel drivers and their cars race one-on-one in a straight line. Drag racing is one of the most popular forms of auto racing, and Top Fuel dragsters are the fastest dragsters around. Young More →

From giant anthills and complex beehives to the vast network of underground tunnels and nests dug by prairie dogs, many animals build towns that rival human cities in size and scope. Come… More →

The M109A6 Paladin is a large, mobile howitzer. It can fire rounds several miles to support ground forces. Readers will learn about the features that make the Paladin successful, how it… More →

Visit the racetrack in this book to see fast cars compete against each other. Race cars have powerful engines and fearless drivers. Zoom through this book and discover different types of race More →

Most motorcycles can go pretty fast. However, some are designed to reach incredibly fast speeds! Kids will read about the history of motorcycles, the technology behind the fastest bikes, and… More →

The EA-6B Prowler’s primary mission is to provide protection for strike aircraft, ground troops, and ships by jamming enemy radar and communications. Kids will learn the tools Prowlers uses… More →

Can we meet today’s energy challenges with clean, cheap, reable sources of energy? Yes! And one of the solutions is right under our feet. Using Earth’s Underground Heat uses clear, simple… More →

A special operations force of the Army, Delta Force performs many important missions during wartime and peacetime. Young readers will learn why this special force remains top secret, what… More →

People around the world are traveling green! From hybrid cars that are more fuel-efficient to public transportation projects that emit fewer pollutants, kids will discover the and… More →

Visit a magical city under the sea! Coral reefs look like colorful buildings rising up from the ocean floor. These huge underwater colonies are built by tiny animals called coral polyps. An… More →