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.

Readers will learn all about World War I, or the Great War, in this appealing Spanish-translated book that highlights how the war began in Europe as a military rivalry between France and Germany. The intriguing facts, engaging sidebars, and supportive text work in conjunction with the impressive images and colorful scrapbook layout to teach readers about such WWI topics as neutrality, alliances, propaganda, liberty bonds, communism, and how General John Pershing led Americans in the war.

Modo jugador se ocupa de las condiciones del videojuego como experiencia para la construcción de conocimiento entre jóvenes urbanos de clase media en la ciudad de Bogotá. Como resultado de su trabajo doctoral, la autora plantea que los videojuegos movilizan formas de conocer que implican una resignificación de la noción misma de habilidades y que conocer, en este contexto, se refiere a una serie de prácticas, acontecimientos y experiencias sensibles, corporales y emocionales que inciden con mucha fuerza en la forma de relacionarse y conocer de quien juega habitualmente y con alto nivel...

Discusses the physical characteristics of great white sharks that combine to make them such able predators.

An illustrated survey of the history and customs of the native North Americans who were members of hundreds of different tribes with varying lifestyles over the centuries.