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.

¿Cómo llega el correo a su casilla de correo? Carteros son responsables por asegurarse los correos de todos lleguen a tiempo. Ahora en español, este título atrae lectores jóvenes a aprender cómo los carteros sirven a su comunidad. Preguntans de pensamiento crítico edad-adecuado y una galería de fotos ayudan a hacer habilidades de aprendizaje y de no ficción. How does your mail get in your mailbox? Mail carriers are responsible for making sure everyone's mail arrives in their mailbox on time. Now in Spanish, this title engages young readers in learning about how mail carriers serve...

La Asociación Española de Sexología Clínica ha escrito los textos de esta colección con el fin de responder a la curiosidad de los niños y enseñarles de una forma natural, adaptando cada cuestión a su edad y explicando las cosas de un modo sencillo, aunque riguroso, acompañado además de graciosas ilustraciones. Este libro aborda las relaciones sexuales y afectivas de la pareja, el proceso de fecundación, así como los métodos anticonceptivos.

Learn the secrets to artful cupcakes, oven-fresh bread, and other delicious baked goods in this delightful nonfiction title. Readers will learn how mathematics helps bakers measure their ingredients to make tasteful treats. Featuring vibrant images and charts, informative text, and fun, intriguing facts, this Spanish-translated nonfiction book will leave children fascinated by all the details that go into baking their favorite treats--like doughnuts and cookies!

This illustrated book teaches children everything they need to know about taking care of kittens from picking one out to what to do when they get sick.