Energía del viento

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

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

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

Follows the life and career of the French scientist who proved the existence of germs and their connection with diseases.

"Gonzalo nos brinda la crudeza de la realidad y el terror de la psique enferma de sus personajes. Sigue los pasos de Guillermina, una chica provinciana que es sometida al délito de: trata de personas en la modalidad de explotación sexual. Inocente pueblerina, hija de familia, adolescente enamorada, joven abducida,dama de compañía, objeto sexual,bailarina de “teibol”, prostituta callejera,el infierno nunca se detiene. Carlos, aquél que le prometió amor, la introduce a este mundo en el que él ha estado desde hace mucho y que se ha llevado la cordura de este extraño hombre. "

El autor de “El cementerio marino” se reconoce en la figura de Leonardo, más un Leonardo “posible” que un Leonardo “histórico”, no por ello menos real y riguroso, y sus análisis son precisa manifestación tanto del arte del pintor cuanto de la estética del propio Valéry

This nonfiction Spanish book teaches students about the earth’s cycles, and introduces them to important scientific concepts and vocabulary terms like combustion, hydrosphere, biosphere, and fossil fuels. The intriguing images, detailed diagrams, and stimulating sidebars will keep students connected to the text. The fun lab activity provides a real-world learning experience that supports STEM instruction. Aligned to state and national standards, the leveled text supports differentiation. Keep students reading with this fascinating Spanish book.

Travel to the 22nd century in this captivating, Spanish-translated nonfiction title that allows readers to discover the future of space. Elementary readers will be fascinated with the possibilities that may await human life in the future. Readers will discover the technology that may be used to one day allow humans to live on another planet, new worlds, alien life, and artificial intelligence. Featuring vibrant photos, images, informational text, a glossary of terms, and a list of helpful websites for more explorations, children will be excited and enthralled as they move through this title.