Grade 4

In Droughts, early fluent readers learn about the conditions that lead to and result from catastrophic water shortage. Vibrant, full-color photos and carefully leveled text will engage young… More →

He created smiles that went on for miles by spending his time writing endless rhymes. Dr. Seuss has produced many American classics, including The Cat in the Hat, How the Grinch Stole… More →

Dung beetles are strong insects. Tarantula hawks have painful stings. In this high-low title, reluctant readers will learn what would happen if these two insects met. Engaging text and… More →

Since 1974, Dungeons & Dragons has let players explore fantasy worlds without leaving their home! This fact-filled title about the famous tabletop role-playing game is sure to engage… More →

Step back in time to when armored fish filled Earth's waters! This hi-lo title introduces the life, behaviors, and body parts of the dunkleosteus to reluctant readers through carefully… More →

In this book, early fluent readers will learn about the causes, main events, key players, and lasting impacts of the dust bowl. Interesting photos and carefully leveled text will engage young More →

Earth is a large planet with many hidden things. We make new discoveries all the time. The world is full of mysteries, but some things can be explained with science. Learn about the… More →

The ground shook and buildings tumbled. San Francisco was struck by a violent earthquake during the early morning of April 18, 1906. Follow along with the true story of a city shaken into… More →

In Earthquakes, early fluent readers learn about what happens during an earthquake, including where and why earthquakes happen. Vibrant, full-color photos and carefully leveled text will… More →

Would you feel an earthquake if it happened? Are you sure? The ground moves all the time without anybody paying it any attention. But at their most extreme, earthquakes can move mountains and More →

The wild world is full of colorful rainbows, ground-shaking earthquakes, and ocean waters moving in and out with tides. How do we know so much about the planet we live on? Sometimes you just… More →

It was an Earth satellite that started the space race between Russia and the United States. Russia sent Sputnik 1 into space in 1957, and the U.S. responded with Explorer 1 in 1958. In this… More →