Simple text and illustrations teach readers common date- and time-related words in both English and Spanish. More →

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Dilophosaurus was a quick dinosaur with a head crest. This book explains what scientists know about this dinosaur and its behavior. Easy-to-read text, vivid images, and helpful back matter… More →

Dinosaurs remain a popular topic for kids, and for good reason! It's amazing to believe that huge reptiles actually roamed Earth and left enough fossils behind for us to know they were real!… More →

Have you ever wondered what it must have been like to lead the life of a dinosaur? Each of the stories in this dazzling book takes an in-depth look at the young lives of 4 dinosaurs as they… More →

With a whip-like tail and equally long neck, Diplodocus was once called the "longest dinosaur." It could whip its tail at supersonic speeds, sending meat-eaters scurrying away in fear. Now,… More →

Dire wolves were fearsome predators. They could bite through bones! In this hi/lo title, reluctant readers will learn how the wolves lived, what they looked like, and how they went extinct.… More →

Big blocks of ice that have built up on Earth over millions of years are shrinking. What's happening to them? Climate change is making things hotter, causing massive melting of Earth's ice… More →

Since ancient times, people have been trying to make sense of celestial bodies and phenomena. Early civilizations attempted to track the motions of stars, planets, and other objects, mapping… More →

From skaters at the park to spaceships launching into space, forces and motion are at work all around us. Have you ever wondered how things move, why they stop, or how a rocket can blast off… More →