La Energía Solar (Solar Energy)

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

The Uses Of Wind Energy Is The Topic Of This Book. Explains The Positive And Negative Impact This Form Of Energy Can Have On Our World.

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.

Sitting Bull first went to battle at the age of 14. He grew to be widely respected for his bravery and insight, and became chief of the Lakota nation in his thirties. By the time he met General Custer at the Battle of Little Big Horn, his courage was legendary. Though he soundly defeated Custer, public outrage at the defeat brought thousands of cavalrymen to the area, where it took four more years before the brave chief would surrender. He was forced onto a reservation where he was later killed when police attempted to arrest him.

La historia de Robinson Crusoe se ha contado muchas veces pero nunca desde el punto de vista de los animales que viven en la isla. Los animales se van cediendo la palabra, desde Yaguatirica, el gato montés, que es quien encuentra a Robinson, a la tortuga que le enseña a comer sabrosos gusanos. Según los animales, Robinson, a quien ellos llaman “Tinga” por su color blanco, era un inútil que no hubiera sobrevivido sin su ayuda. Todo cambia el día en que llega Taiguara, es decir “Libre”, al que Robinson se empeña en llamar Viernes.

Una detallada e ilustrativa explicación de por qué nosotros y todo lo que nos rodea está hecho del mismo Material de las estrellas. Este libro ilustrado es una adaptación para niños y niñas del afamado título Hijos de las estrellas, de María Teresa Ruiz. En él, los lectores conocerán cómo la autora llegó a convertirse en astrónoma, la importancia de la curiosidad para poder dar respuesta a los grandes misterios del universo, y cómo nosotros, los seres humanos, estamos íntimamente relacionados con la vida y la muerte de una estrella. Las ilustraciones están a cargo de Valentina ...

Nearly 75% of planet Earth is covered in water and 96% of it is found in the ocean. We know more about outer space than we know about the depths of the ocean, but through the use of modern technology, scientists are shedding light on the Earth’s hidden underwater world. This nonfiction Spanish book explores the Earth’s oceans in depth and introduces students to new concepts, vocabulary terms, and STEM topics. Aligned to state and national standards, the leveled text supports students reading at above-, below-, and on-grade level. The fun lab activity encourages students to think like...