Grade 4

Did you know the yo-yo was invented in Ancient Greece? Or that people in China have used chopsticks to eat with for more than 4,000 years? Learn these cool facts and so much more in this… More →

Did you know that about 75 percent of the world's freshwater is frozen in Antarctica? Or that the Great Barrier Reef is the largest living structure on Earth? Explore the extreme world around More →

Have you heard of the dam so massive it actually added a fraction of a second to every day? Or seen the bridge that literally disappears below the ocean? Explore these extreme feats of… More →

Did you know one spinning storm over the sea was wide enough that it could have stretched across the entire United States? And have you heard about tornadoes made of water, fire, or snow?… More →

Did you know a hippo can bite a crocodile in half? Or that lightening is five times hotter than the surface of the sun? Learn these cool facts and so much more in this engaging science… More →

Did you know that the planet Mercury is slowly shrinking? Or that people grow a little taller while in space? Learn these cool facts and so much more in this engaging series all about space.… More →

Did you know earlier colonists had to eat shoe leather to survive? Or that George Washington didn't really want to be president? Learn these cool facts and so much more in this engaging… More →

Yoga for Everyone illustrates fun, simple yoga poses readers can do anywhere as part of their everyday routines. Step by step instructions, illustrations, and helpful tips and techniques make More →

Bulldogs, bobcats, fighter jets, and mummy wraps are yours to create in this series for aspiring illustrators. Young readers will gain artistic confidence and discover the satisfaction in… More →

Each title in You've Got a Friend focuses on a specific emotion, how readers can identify that emotion in others through their actions, words, and body language, as well as how to react to… More →

For hundreds of years, people have told stories of corpses that rise from the dead and feast on the living. Are these horrifying tales just fiction and superstition? Or could these stories… More →