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.

En este libro la autora comparte con nosotros sus vivencias estivales, el encuentro con sus catorce nietos, las divertidas anécdotas, los temas que van surgiendo: la naturaleza, el amor, la vejez, la violencia, la pobreza, la amistad... y sus reflexiones sobre la vida y el paso del tiempo.

Rabbit burrows play an important part in the life of a rabbit. A burrow provides a place to live, a place to raise baby rabbits, and a place to stay safe from predators. This volume, which was written to support elementary science curricula, examines the role a burrow plays in the survival of a warren, and how that in turn helps rabbits contribute to ecosystems around the world. The text’s age-appropriate, science-rich content focuses on rabbit behavior and encourages readers to draw connections between what they learn in science class and what they see outside. This text is complemented by ...

Técnico electricista 2 - Curso visual y práctico Corriente continua Conoceremos en detalle la caída de potencial y describiremos las características de los nodos, ramas y mallas, dentro de un circuito eléctrico. Enunciaremos las leyes relacionadas con la tensión y la corriente y, posteriormente, nos daremos a la tarea de aplicarlas en la realización de diversos tipos de conexiones, por ejemplo: la conexión de resistencias en serie, la conexión de resistencias en paralelo y también la conexión de capacitores. Para continuar, conoceremos el teorema de superposición y realizaremos un ...

George Washington Carver was a skilled botanist who became famous for his work with peanuts and other plants. Readers will discover the captivating life of this incredible scientist in this engaging scientific biography translated in Spanish. Using colorful photos and graphs, children will learn why Carver was known as "The Plant Doctor" as a child and how his work with peanuts, sweet potatoes, and pecans helped change the way people used plants! The helpful glossary and index aid in better understanding of the content, while a simple, interesting experiment leaves Spanish-speaking children...