Exploremos el ciclo de la roca (Exploring the Rock Cycle)

Diamonds and salt are both minerals, but diamonds are more rare than salt. Curious readers will learn what physical and chemical conditions must be present for minerals to form. They'll discover how minerals are identified and how they are used in daily life. Informative and interesting text presents readers with this science content in a fun way. A graphic organizer shows how different minerals are identified and fact boxes provide readers with exciting supplementary information.

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.

¿Sabías que los antiguos griegos inventaron la democracia, la filosofía, el teatro y los Juegos Olímpicos? ¿Y que fueron precursores en los campos de la ciencia, la medicina, la economía y el urbanismo? ¿Sabías cómo descubrió Arquímedes su famoso principio? Explorar la historia de la Grecia Clásica es descubrir una civilización con una riqueza cultural que no ha dejado de inspirar al mundo occidental. De Zeus a Atenea, de Aquiles a Ulises, los dioses y los héroes griegos están presentes en numerosas manifestaciones artísticas y literarias. Las batallas, los desafíos y las...

Más de 150 fotos y textos sencillos para descubrir de dónde salen los alimentos que compramos en las tiendas.

Our world is filled with lots of stories. And, some of the greatest stories are the ones that are captured on film! But, how well do we know the people who bring these films to life? Take a behind-the-scenes look at some of today's leading filmmakers and their journeys to success. These filmmakers work hard to include a variety of voices in their films. Learn about Hollywood's finest storytellers while learning how to add and subtract mixed numbers! This Spanish nonfiction book combines math and literacy skills and uses everyday examples of problem solving to teach subject area content. The...

There is growing concern over how we behave and interact online, from fighting, incivility, rudeness, and even criminal behaviors like cyberbullying, to simply adapting old forms of etiquette to a new landscape. This book, updated from an earlier resource, provides younger readers an introduction to this timely topic, a subject that they are both engaged in forming themselves as "digital natives," and one they also often require guidance in. It informs readers about the polite and productive use of social media networks and mobile platforms and discusses pressing issues of etiquette within...