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.

Highlighting the increasing loss of values that modern society is suffering, a unique guide teaches the attributes of tolerance, communication, respect, and equality--keys to a happier coexistence and life.

This myth may have been the foundation for The Odyssey. Join Jason and the Argonauts as they encounter evil harpies, crashing cliffs, and a giant snake on their quest for the Golden Fleece.

¿Te gustan las búsquedas del tesoro? ¿Cómo sabes si el agua de un arroyo está limpia y saludable? Acompaña a Lucas y a su hermana mientras hacen de científicos en búsqueda de ciertos tipos de insectos de arroyo (macroinvertebrados acuáticos) que necesitan agua limpia y libre de contaminación para sobrevivir. ¿Qué encontrarán al voltear piedras, levantar hojas y buscar entre el lodo? Sigue leyendo para saber si su arroyo recibe una calificación de aprobación.

Combine valuable fifth grade math and literacy skills in a purposeful way with the Spanish-translated math reader El regalo de cumpleaños del abuelo (Grandpa's Birthday Present). Focusing on the critical skills that 5th graders need to know to advance to the next level, this book incorporates key concepts into an engaging text that showcases math skills needed to create a budget and calculate sale prices. This high-interest nonfiction reader introduces how to convert percentages, decimals, and fractions. Filled with mathematical charts, diagrams, and practice problems, the text features in...