Energía del viento

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.

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

En este breve libro, que no breviario, cabalgan hermanadas la poesía japonesa occidentalizada, vale decir el haiku y el senryu, que en apenas diecisiete silabas divididas en tres versos sin rima expresa diversos sentimientos; la glosa, el soneto, el madrigal y el poema libre, realengo, que no atiende las estrictas normas de la métrica. Cabalgan también cómodamente, en su carruaje poético, los recuerdos únicos de la tierra que me vio nacer, Marabal, donde quedó sembrado mi espíritu y que muchas veces visito en sueños, repetitivos, de añoranza, de arrepentimiento por el abandono, de...

Go for the goal with this text, which examines fascinating female sports heroes who’ve proved to the world that gender is no barrier to athletic success. Readers will delight in learning about the lives of Mia Hamm, Wilma Rudolph, and the Williams sisters, as well as other important women who’ve broken barriers in sports. Readers will be inspired to pursue a career in athletics after learning about how others have achieved success in spite of great obstacles. The biographical nature of the text supports social studies curricula, and fact boxes and a comprehensive timeline provide...

Did you know that pigs are some of the smartest animals on Earth? Pigs keep themselves very clean. Discover more about these farm animals in My Pig.

This how-to kit contains instructions for making beadlings, itty-bitty creatures made out of shimmering glass beads strung on wire, and comes with materials for all nineteen projects. Mini criaturas irresistibles hechas a base de brillosas chaquiras y alambre de plata. Este libro contiene simples instrucciones e ideas para hacer estos trepadores, bichos voladores, gente y animales marinos y incluye toda la material para diecinueve proyectos.