El ferrocarril transcontinental (The Transcontinental Railroad)

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.

In English and Spanish, help children understand their fears and teach them simple coping skills. It is natural for children to feel afraid sometimes. In this English-Spanish bilingual book, encouraging words and supportive illustrations guide children to face their fears and know where to turn for help. Little ones also learn simple ways to help themselves. Includes a special section for adults, with ideas for supporting children when they feel afraid and a list of additional resources, in both English and Spanish. ​The Learning to Get Along® Series The Learning to Get Along series helps...

This Spanish-translated book will be a hit with both thrill seekers and with those who prefer to stay safely on the ground. After an introduction to Newton's three laws of motion, readers learn the mechanics of various amusement park rides including roller coasters, Ferris wheels, merry-go-rounds, and gravity rides. They learn how to measure motion, and how kinetic and potential energy apply to their favorite rides. This 6-Pack includes six copies of this title and a lesson plan.

Existen muchos tipos de inventos: inventos fáciles y difíciles; importantes o insignificantes; inventos para hacer reír e inventos que hacen llorar; inventos que sanan frente a otros que matan; inventos que nos ayudan a ser felices e inventos que ni siquiera lo intentan. Con este libro tendrás la oportunidad de pensar sin límites en tu propio invento. Esta colección consta de cinco libros, cada uno de los cuales incluye una serie de preguntas y de respuestas sobre temas que enriquecerán al niño en su visión del ser humano, la vida y el mundo. Las preguntas no solo generarán debates...

A closer look at the stomach and how it works with the digestive system to give the body the nutrients it needs to stay healthy.