Grade 3

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 →

We use wheels and axles several times every day. Young readers will learn how a wheel and axle work together, how they make work easier, and how they are used in larger, complex machines. More →

These heavy machines flatten the ground to make roads or prepare the foundation of a building. They roll large drums over a surface to smooth it out. Readers will learn the parts of a roller… More →

Manta rays are large, graceful ocean animals. They glide through the water on slowly flapping fins. Find out what manta rays look like, how they eat, and how they are able to jump and breach… More →

Gymnastics is a sport requiring strength, flexibility, and agility. Gymnasts perform routines on different pieces of equipment during competitions. Young readers will discover the history and More →

Whether it’s snowboarding down a huge mountain or surfing a massive wave, X-Moves will have readers on the edge of their seats. Each book in the series showcases some of the most incredible… More →

Kids won’t believe their eyes when they see these super-huge machines! From heart-stopping roller coasters that are as tall as a 45-story building to monster-size trucks with wheels that are… More →

Supersonic jets travel faster than the speed of sound. These jets are designed to maintain stability and function at very high temperatures. Kids will read about the technology, history, and… 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 →

Night Stalkers are a special operations force of the Army who specialize in piloting helicopters. Kids will read about the helicopters Night Stalkers use to perform their missions, what kind… More →

Hang out with the most daring skateboarders around as these fearless athletes perform jaw-dropping stunts! Gnarly Skateboarders takes kids straight into the action, from the hottest stars and More →

The United States Army Rangers are an elite light infantry special operations force. Readers will learn what life is like as a Ranger, what tools they are trained to use, and what kind of… More →