Derecho de las obtenciones vegetales

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.

¿Qué significa estar triste? Es normal sentirnos desanimados de vez en cuando. Los niños aprenderán cómo se siente estar triste, cuáles son las causas de la tristeza y cómo transformar este sentimiento en alegría. Fotos grandes y diversas ayudan a mostrar cómo se ve la tristeza. Se incluye una actividad de reflexión que permite a los niños practicar el manejo de sus emociones.

Granpa has given Frederick a gift: a sealed box. It talks and contains all the knowledge of the world. This is the story of Frederick and his box, and many information about nature and ecology. For children 9 and up.

This book looks at natural structures such as plants, animal bodies, mountains, caves, rock formations, and icebergs, the materials from which they are made, and their colors, shapes, and textures. It shows structures made by animals, such as beehives and bird nests. This wonderful book with amazing photos will encourage young readers to notice colors and shapes in nature and how they relate to the purpose of structures.