Energía del viento

A simple biography of the naturalist who founded the Sierra Club and was influential in establishing the national park system.

Provides The History Of Biofuels, Different Uses, Positive And Negative Characteristics, And How They Will Impact The Future.

Defines levers, explains their functions, and suggests simple experiments to demonstrate how they work.

Robbery, gunfights, murder--outlaws ran rampant all across the Wild West! Readers will be introduced to some of the most famous robbers and outlaws of the Wild West in this enthralling, Spanish-translated nonfiction title. With vivid images, informational text, and incredible facts and stories about such well-known figures as Billy the Kid, Butch Cassidy, and Jesse James, readers will be engaged from cover to cover!

Firme alegato contra la sociedad patriarcal tradicional, EL SOMETIMIENTO DE LA MUJER es uno de los textos que sentaron las bases de la emancipación de la mujer y su incorporación a la sociedad civil en pie de igualdad con el varón, y que habría de ver sus mayores logros –cuando menos sobre el papel– en el siglo xx. Compuesto por JOHN STUART MILL (1806-1873) entre 1860 y 1861 con la participación de su hijastra Helen Taylor, decidida activista a favor del sufragio femenino y de los derechos de la mujer, lo que da a este ensayo su valor de universalidad y permanencia –nos dice Carlos ...

Introduce students to world trade with this nonfiction Spanish book. Young readers will learn about the various services and goods that countries around the world provide, the different types of currency, and the difference between wants and needs. With images that support the text, students will be fully engaged and better understand the content.

This collection of four titles approaches the four essential ethical topics of the virtues of listening, prudence, patience, and effort. Each of these virtues is highlighted through illustrated mini stories so children can understand the importance of nurturing and strengthening them in themselves and in others.