Primavera

Get a close-up look at animals in the zoo, from appearance to behavior to babies. This series uses vivid photos to compare life in the wild and life in captivity in terms of habitat, activity, and diet.

Técnico electricista 12 – Curso visual y práctico Luminotecnia En esta clase, describiremos los principios de la iluminación, explicaremos la importancia de un nivel correcto de iluminación, veremos las unidades que intervienen en el cálculo de iluminación y conoceremos las características de cada una de ellas. Describiremos los tipos de lámparas existentes, las características de las lámparas incandescentes, fluorescentes y de vapor. También analizaremos las ventajas de las lámparas dicroicas, bipín y halógenas. Continuaremos con las cualidades de los principales tipos de...

Plymouth Rock chickens and Silkie chickens are just a couple of the many breeds of chickens living on farms. Readers will learn how farmers raise chickens and what different breeds are called. This high-interest book combines eye-catching photographs with manageable text to best reach its readers. Readers will love learning chicken fun facts, while gaining an understanding of why chickens are farmyard staples. Text is supported by a variety of tools, including a picture glossary, table of contents, index, and additional websites.

Explains, in simple terms, the reasons for skin color, how it is determined by heredity, and how various environmental factors affect it.

There's so much more to heat than hot and cold! How it moves, keeps us warm in the winter, and helps us cook our food is all part of this key science topic. Inside a colorful layout, the main text is written with struggling readers in mind, giving clear, concise explanations in understandable language to propel these readers to classroom success. Graphic organizers reinforce important topics for visual learners and those using the books as a "crash course" review of heat.