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.

Learn multiplication on a fun-filled trip to the supermarket! The displays, shelves, and layout of a local grocery store provide ample opportunities for students to learn multiplication as they are engaged in reading high-interest content. This Spanish book combines mathematics and literacy skills, and uses practical, real-world examples of problem solving to teach math and language arts content. The full-color images, math graphs and charts, and practice problems make learning math easy and fun. The table of contents, glossary, and index will further understanding of math and reading...

Toda antología comienza presentando un cúmulo de explicaciones y de justificaciones que pretenden dar debida cuenta no sólo de su intención, sino que también expone un razonamiento argumentado y lógico -aunque a veces esta lógica se fundamenta, en parte, en criterios que poseen un carácter inevitablemente subjetivo- que intenta cubrirse las espaldas ante ese posible tirón de orejas que suele aparecer tras su publicación. Sin ánimo de crear malentendidos ni de suscitar equívocos, Lunas de la voz ausente persigue ser ante todo, y antes que nada, una antología poética que muestre...

Con materiales disponibles en cualquier hogar y sin necesidad de complicados aparatos, puedes realizar sencillos y divertidos experimentos que te ayudarán a comprender mejor el fascinante mundo de los verdaderos amos de la Tierra, los insectos, tan necesarios para el equilibrio ecológico. Estos experimentos sobre los insectos no entrañan ningún peligro y no requieren el uso de sustancias ni materiales especiales. Son fáciles de realizar y están dirigidos a los niños que ya han alcanzado un nivel aceptable de lectura comprensiva, a partir de los 10 años. Dentro de esta nueva...

"Some things are so huge or so old that it's hard to wrap your mind around them. But what if we took these big, hard-to-imagine objects and events and compared them to things we can see, feel and touch? Instantly, we'd see our world in a whole new way." So begins this endlessly intriguing guide to better understanding all those really big ideas and numbers children come across on a regular basis. Author David J. Smith has found clever devices to scale down everything from time lines (the history of Earth compressed into one year), to quantities (all the wealth in the world divided into one...