Grades PreK - 3

What’s that loud sound? Your sense of hearing lets you hear all sorts of sounds. Read about the parts of your ears and how they work together. Learn how to protect your sense of hearing, too. More →

Embark on a voyage to explore some of history’s greatest unsolved ghost mysteries! These tales have transcended time and continue to defy explanation. Mysteriously abandoned ships, eerily… More →

Deserts are dry, harsh places full of animals that have adapted to life in these conditions. Endangered animals of the desert include the wild Bactrian camel, the Gila monster, and more.… More →

Watch the showdown between the walrus and the elephant seal, two tough hunters of the ocean. The walrus uses its long tusks to stay safe from polar bears and orcas. But can it win against the More →

Love is all around! Valentine’s Day is a day of love and friendship. Learn how people enjoy this day with their family and friends. Read about this holiday’s history and symbols, too. More →

Dive into the rugged world of mountain habitats and the remarkable creatures fighting to endure. From powerful pumas to elusive Andean condors, uncover the struggles they face as their… More →

Many people believe places feel creepy because they are haunted. Why do spirits stay in certain places? Should we drive them away? Or should we let them stay? Dare to be a ghost hunter and… More →

ARMY STRONG! Take a first-hand look at the men and women who keep us safe by fighting on land, protecting our country against attacks, and helping out with rescue and aid after natural disasters. More →

From their striped fur to their padded paws, baby tigers are too cute! Learn how tiger cubs grow up through narrative nonfiction, fun facts, infographics, a photo glossary, and more! More →

Summer is over and fall is here! Fall is full of beautiful colors. Learn what people, plants, and animals do in the fall as they get ready for winter. More →

Gray Wolves are more than North America’s largest wild canine. They restore and protect wilderness habitats. Discover the features and behaviors that make gray wolves so amazing! Are these… More →

Bald Eagles are the symbol of the United States. But at one time, these powerful birds were in danger of extinction. Learn more about these amazing creatures and how they were saved from destruction. More →