What is a force? How do forces make things move--or stop? How does the force of gravity affect life on Earth? Find out the answers to these questions and much more. More →

What is light and how does it help us to see? What is reflection? How does light form shadows? Find out the answers to these questions and much more. More →

What is a magnet? Why are some materials magnetic? How does a compass work? Find out the answers to these questions and much more. More →

What are materials? What are the properties of a material and how do these vary? What is the difference between natural and human-made materials? Find out the answers to these questions and much more. More →

What are solids? How are they different from liquids and gases? How can they be changed? Find out the answers to these questions and much more. More →

This stimulating series offers highly readable explanations of the basic principles of human, animal, and plant genetics. This vital science has revolutionized the way we look at inheritance… More →

From the Compton's Cafeteria and Stonewall riots in the 1960s, to the decriminalization of homosexuality, and marriage rights, this thoughtful title examines the continuing fight for LGBTQ… More →

Explore the similarities and differences between the major civilizations of antiquity. This larger-than-life new series takes a thematic approach. Each title focuses on a specific aspect of a More →

Early Islamic World looks at the foundation, development, and spread of the Muslim religion and peoples, from the roots of the religion in the early 600s to the end of the Ottoman Empire in… More →

More than 3 million men served in the Union and Confederate militaries during the Civil War. This volume traces their recruitment, training, battle tactics, weapons, food and clothing, and… More →