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.

The Industrial Revolution was one of the most dramatic eras of all time, filled with fascinating people, strange events, and incredible stories. This period of great change comes into sharp focus through each spread with detailed, accessible language. Each fact is complemented with vivid, carefully-chosen historical images and illustrations, and a caption that adds just a touch more history. Readers are drawn deep into the facts not covered in history textbooks, like working conditions, inventions, failures, and characters, to make this important history lesson fun and engaging.

Un libro para profundizar en el mundo de los escorpiones, la robótica y descubrir la relación entre ellos. Además, todo lo necesario para construir tu propio escorpión robot. ¡Cuidado! pica y le brillan los ojos.

Take a look inside this book and you'll discover four delightful jigsaws specially designed for tiny hands, with each jigsaw piece that has touchy-feely textures that will help to develop sensory awareness and the concept of matching.

Hay pocos terrenos tan abonados con creencias falsas como el de la sexualidad. La información con que muchos jóvenes cuentan proviene de personas tan mal enteradas como ellos o de otras fuentes poco fiables. En cambio, una educación sexual basada en información fidedigna mejora las relaciones entre hombres y mujeres, propicia una sexualidad gozosa y libre y ayuda a prevenir diversos problemas, desde infecciones de transmisión sexual hasta abusos sexuales infantiles. Aquí se organizan temáticamente las preguntas e inquietudes más frecuentes de los jóvenes en torno al cuerpo, el amor y ...