La Energía Solar (Solar Energy)

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

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.

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

Este diccionario de literatura y gramatica se dirige principalmente a los no especialistas; comprende sobre todo articulos breves que informan --frecuentemente con ejemplos de varios idiomas-- y a veces tambien divierten. Contiene explicaciones concisas de muchos de los terminos que uno encuentra al estudiar gramatica y literatura.

There is a bright light in the night sky. Sometimes it is round like a ball, sometimes it is a crescent, and sometimes it is not there at all! What is this strange and changing thing? It is the moon, of course! Read all about our moon and the moons surrounding other planets in this Spanish-translated book. This 6-Pack includes six copies of this title and a lesson plan.

Introduces the life of Shoshoni Sacagawea, from early childhood through her days guiding the Lewis and Clark Expedition through the American wilderness, and speculates on her life after that adventure.

"En este libro te proponemos un recorrido que no te va a dejar indiferente. Porque no el sólo un itinerario por distintos países del mundo, sino que te invita a adentrarte en la escencia del ser humano...,"--Page [4] of cover.