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.

Welcome to Mexico! From the various animals to the warm desert, readers are invited to explore all aspects of this beautiful country in this delightful, Spanish-translated nonfiction title. Using informational text in conjunction with vibrant photos, maps, and charts, readers will be engaged from beginning to end!

In this inspiring biography, readers will learn about the incredible journey of Helen Keller. Using informational, Spanish-translated text and expressive images and photos, readers will discover the undeniable determination that Keller had as a young deaf and blind girl and how her teacher, Anne Sullivan, helped her to read, write, speak, and graduate from college. With a timeline, a bibliography, and a glossary of terms, children are given the tools they need to expand their knowledge about this fascinating and inspiring woman.

"Nueva York, Berlín, París, Moscú, San Petersburgo y México son algunos de los escenarios de esta apasionante novela que se adentra en la vida del poeta vanguardista ruso Vladimir Maiakovski. Un hombre extremo, arrogante, un narcisista que no soportaba que no lo quisieran, un soñador que creía en el futuro y que vivió con una intensidad desbordante su relación amorosa con Lily Brik, permitida y alentada por su marido Osip, en uno de los triángulos más famosos de la literatura mundial. Contagiado por la personalidad de su protagonista, éste es un libro provocador, radical, regido...

Llega una gran tormenta desde el mar. ÁEs un hurac‡n! Descubre c—mo se formanestas enormes tormentas y quŽ sucede cuando llegan a la costa.