The Middle Ages in Europe was characterized by almost constant warfare as rival nobles fought with knights for castles and land. At the same time, Vikings, Magyars, Mongols, and Moors were… More →

Each book in the Members of the Animal Kingdom series introduces you to a different animal group and explains how they are unique. Spectacular photographs and fact boxes will capture readers' More →

Jump into orbit around one planet in our amazing solar system: Mercury! Take a fact-filled flight to learn what makes this tiny planet so special. Explore its speedy travel through space,… More →

Directed by U.S. President Thomas Jefferson, Meriwether Lewis and William Clark teamed up in 1805 to explore the land included in the Louisiana Purchase. Find out how the findings from their… More →

Simple activities show children how to make a difference to the environment by reusing metal to make bird feeders, pots for plants, and tin-can phones. More →

This comprehensive title introduces young scientists to the properties of metals. Through clear, concise text and supportive images, readers will discover that most metals are shiny, ductile, More →

This valuable resource provides teachers with useful suggestions on how to teach the subjects covered in the Rocks, Minerals, and Resources series. More →

Rocks and minerals are all around us, but they're not all the same. Discover metamorphic rocks and find out how they form, what makes them unique, and how we use them. Explore some marvelous… More →

Children will be delighted to learn how the bodies of different animals, including frogs, butterflies, and beetles, change as these animals go through their life cycles. Metamorphosis… More →

New information and colorful photos show how modern-day Mexico is able to maintain a foothold in its ancient Aztec and Mayan past in this newly revised book. New information highlights… More →