La Energía Solar (Solar Energy)

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

This inspiring biographical series ties in with elementary history, science, and social studies curricula, providing teachers with a valuable interdisciplinary resource. With these books, young readers will discover historical figures who devoted their lives to making the world a better place, and changed the course of history. Text copyright 2004 Lectorum Publications, Inc.

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

Con este libro ilustrado aprenderás a dibujar gatos de caricatura con sencillas lecciones paso a paso.

As they say, necessity is the mother of invention, and this book introduces readers to 14 women who invented very useful, helpful items. They include Chicago native Margaret Wilcox who invented the car heater, Indiana native Marion O'Brien Donovan who invented disposable diapers, Pennsylvania native Stephanie Kwolek who invented Kevlar, and Austria-born actress Hedy Lamar whose secret communications systems led to the creation of WiFi, Bluetooth, and GPS.

En la voluminosa obra reunida bajo el sugerente título de las NOCHES ÁTICAS se recopilaron múltiples noticias y curiosidades de la cultura clásica: anécdotas de Alejandro Magno, vidas de filósofos, apuntes sobre literatura y lenguaje, antiguas costumbres, hechos portentosos... De la miscelánea casi inextricable que AULO GELIO (s. ii) fue elaborando por las noches durante su estancia en el Ática y que ha cautivado a lo largo de los siglos a autores como Castiglione, Diderot, Borges o Bioy Casares («es uno de los libros que estimulan nuestra inteligencia, nuestra imaginación o...

So you think you're a martial arts master, but do you know the difference between kung fu, kendo, and karate? Students will learn about various martial arts as they practice comparing numbers. This Spanish math book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, intriguing sidebars, practice problems, and math diagrams make learning math relevant and fun. Text features include a table of contents, glossary, and index to increase understanding of math and reading concepts. An in-depth problem-solving...