El ciclo del nitrógeno (The Nitrogen Cycle)

Help teach students about the voting process with this Spanish nonfiction book. Made for young readers, the book includes a fiction story related to the topic, a bonus project, discussion questions, and other helpful features. This 24-page full-color Span

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.

Simple text and photographs introduce the concept of "skip counting," or counting by groups of a certain number, and present items for practice.

Decades after the end of the communist regime in Hungary, the author of this book receives a call about the appearance in a file of some documents that may interest him. They contain a surprising secret that will shake him to the ground.