Universo

Insectos is one book in the Spanish-language Gran Atlas de la Ciencia series that covers today's most popular science topics, from digital TV to microchips to touchscreens and beyond. Perennial subjects in earth science, life science, and physical science are all explored in detail. Amazing graphics--more than 1,000 per title--combined with concise summaries help students understand complex subjects. Correlated to the science curriculum in grades 5-9, each title also contains a glossary with full definitions for vocabulary.

Cuentos, poesias, chistes y 350 adivinanzas (algunas tradicionales y otras inventadas especialmente para este trabajo), constituyen una nueva propuesta que invita a seguir jugando con las palabras.Para todos los gustos y edades, este libro rescata y renueva la tradicion de las adivinanzas. De calles, de nombres y animales, de frutas y verduras, un verdadero maraton para adivinadores.

The crustacean subphylum can be broken down into decapods, amphipods, copepods, and other types. This title offers readers from grades one through four comparisons between the needs and roles of different crustaceans, which will allow readers to understand the subphylum’s importance. Readers will recognize and expand their knowledge about familiar species like the lobster and the shrimp, while being introduced to the likes of the wood louse and zooplankton. Dynamic photography and methodically organized information will help readers examine the many sizes, types of limbs, and other features ...

In every student book you will find: Extensive speaking, pronunciation and vocabulary sections Thorough grammar sections with clear examples and practice Comprehensive listening activities with scripts Contemporary, engaging reading materials taken from authentic sources Writing Banks with the chance to practice different writing styles And finally, the Review and Practice pages after each unit bring all the learning activities together ActiveBook is a complete digital version of the Students' Book on one CD. It is a convenient and simple tool with easy navigation and zoom facility. Videos...

La colección ESTRATEGIAS DE SUPERVIVENCIA recoge todas aquellas tretas, señuelos y actividades que desarrollan los animales y las plantas tanto para defenderse como para atacar, para sobrevivir en medios hostiles, para reproducirse con éxito entre los dep