El ciclo del nitrógeno (The Nitrogen Cycle)

Take a journey into the wild world of reptiles and amphibians! Readers will learn about crocodiles, lizards, snakes, tortoises, and salamanders. Featuring a glossary, index, colorful images and charts, intriguing facts, and clear, informative text, readers will be sure to be enthralled as they move through this engaging, Spanish-translated book.

El método Protagonistas se compone de cuatro volúmenes que cubren el nivel B2 del Marco común europeo de referencia para las lenguas: enseñanza, aprendizaje y evaluación. El Cuaderno de refuerzo Protagonistas B1 es un material de apoyo y práctica de los contenidos del Libro del alumno. Consta de 12 unidades de 4 páginas con actividades de refuerzo. Cada unidad refuerza los contenidos presentados en el Libro del alumno para fijar y sistematizar las estructuras gramaticales y el léxico. Las actividades se presentan en una estructura paralela a la del Libro del alumno, de forma que se...

An award-winning first glimpse into the diverse natural world of mammals. This addition to the acclaimed About... series explains to children in simple, easy-to-understand language what mammals are, what they eat, and where they live. Beautifully detailed, realistic paintings by wildlife illustrator John Sill introduce readers to the huge variety of mammals, from the tiny white-footed deermouse to the large American bison. An afterword provides more details about the animals featured in the book. Parents and pre-school and primary-grade teachers will find this an attractive choice for...

Describes the U.S. Navy's Blue Angels, including their planes, the formation and maneuvers of their air shows, and team member duties. Written in English and Spanish.