From dry deserts to tropical rain forests, Earth's biomes are home to all kinds of plants and animals. Each biome has a unique climate and can be found in different parts of the planet.… More →

People have sung notes, drummed out beats, and created musical instruments for thousands of years. Music in all its forms is an important part of human culture. This series introduces young… More →

Explore the high-interest and evolving topic of robots. From how robots are designed and created to the future of space, military, and other kinds of robots, readers will learn up-to-date… More →

There is no shortage of ideas for how to solve big societal problems, but disagreement is seemingly endless when it comes to deciding which solutions will work, whether they will cause more… More →

"Extreme" means to a very great degree. An extreme material could be the rarest there is. The deep ocean is an extreme habitat. Even gravity can be an extreme force! In this set, readers… More →

History isn't set in stone. It has a way of changing over time depending on who's telling the story. Primary sources, photographs, and new information will help sort fact from fiction and… More →

As a dachshund, Clementine sees the world from an entirely different viewpoint, one that's much closer to the ground and allows her to scamper by undetected. Join this sassy wiener dog as she More →

Hi-tech cameras. Hidden messages. Secret missions. There's nothing more high-interest than the jobs federal workers do in secret to keep U.S. citizens safe. Leveled text and detailed… More →

Hi-tech cameras. Hidden messages. Secret missions. There's nothing more high-interest than the jobs federal workers do in secret to keep U.S. citizens safe. In this North American… More →

People around the world love to gather together to celebrate important days. Although the reasons for these celebrations may differ from place to place, they are all special times. Readers… More →