Roc y la salud

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

How do you truly engage students in learning history? When students make personal connections to the subject, they’re much more motivated to learn. This Spanish biography provides firsthand accounts of history that give personal insights into historical events. This primary source book focuses on the lives of famous Californians including John Muir, Dorothea Lange, Sally Ride, and Cesar Chavez. Learn about California’s history while building reading comprehension and social studies literacy. With a visually appealing layout, this book features captivating text, fun facts, sidebars, and time ...

Este libro te enseña sobre cómo las presiones de la escuela y las amistades contribuyen a una imagen corporal negativa, especialmente entre los adolescentes. Aprenderás acerca de los trastornos alimenticios más comunes y cómo se tratan.

When we look up at the night sky you can see millions of stars, but what do you think we could see in space if we left Earth? If we could hop into a special ship and blast off, traveling billions of miles away from Earth, we’d see the Milky Way galaxy. In this book, readers take an incredible journey through that galaxy, exploring the universe and learning how it was formed and what will one day happen to these enormous groups of stars. From mysterious dark matter to the black holes at the center of galaxies, readers will also dive into the mysteries of the universe scientists have spent...