Los planetas (The Planets)

Black holes are neither holes nor black. They're invisible and packed with matter! Future astronomers will find out many more fascinating facts about these space phenomena with this intriguing book. Carefully crafted text encapsulates the most important information about black holes, such as how scientists locate them and their significance in a star's life cycle. Amazing photographs support critical concepts and inspire a true appreciation of the spectacles of space.

Animalanzas incluye casi doscientos acertijos de Hispanoamérica, ideales para leer y reir en los ratos libres.

Follows the adventures of Max Axiom as he explains the science behind forces and motion. Written in graphic-novel format.

Find out how school is the same--and different--in countries all over the world in this fascinating, Spanish-translated nonfiction title. Readers will learn about the way students learn in other countries, from homeschooling to trade schools. This interesting book features informational, descriptive text, and colorful photos and maps to engage readers from cover to cover.

Examines the nature of inclined planes and wedges, how they can reduce the amount of force necessary to perform work, and ways in which they are used.