La Energía Solar (Solar Energy)

El Mayflower es un barco que ha llegado a ser célebre en la historia de los Estados Unidos porque en 1620 transportó desde Inglaterra al grupo conocido como "los peregrinos", quienes serían los primeros colonos europeos en establecerse en Norteamérica. Ellos zarparon desde el puerto inglés de Southampton y bautizaron como Nueva Inglaterra a la tierra que los acogió. Como señala este libro, el Pacto del Mayflower designa el acuerdo que los hombres adultos de esta comunidad firmaron a bordo del barco para fijar criterios generales que sirvieran como fundamento para el gobierno de la...

Defines pulleys, 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.

La política concierne a todo el mundo, incluyendo a los niños. Es lo que nos permite acordar las reglas para convivir de manera equilibrada. ¿Cómo se convierten en políticos los hombres y las mujeres? ¿Qué hacen los gobernantes? ¿Qué es una ley? Descubramos la respuesta a muchas preguntas sobre la política divirtiéndonos con juegos y cuestionarios. Politics concerns everyone, including children. It is what allows us to agree on the rules to coexist in a balanced way. How do men and women become politicians? What do the rulers do? What is a law? Let's discover the answer to many...

We love our pets. And our pets love us. Animals need lots of care. This engaging Spanish book teaches beginning readers how to take care of pets. Engage students in reading as they develop their early childhood literacy skills. With TIME For Kids content, this full-color book is aligned to state and national standards, and introduces students to simple informational text features.

People today refer to the Midwestern and prairie states as flyover country. During the Civil War, crossing those areas was the biggest obstacle in uniting the East and West Coasts of our divided nation. An act of Congress in 1862 authorized the Central Pacific and the Union Pacific railroad companies to build a railroad that would link the coasts. Seven years later, on May 10, 1869, an overwhelmingly immigrant labor force completed the task when a rail line was join in Promontory, Utah. The states had become united at last.

Updated for 2020, great photographs capture children’s attention as they read about different ways animals use their voices, ears, eyes, and mouths in this cute book.