101 ejercicios de fútbol para jóvenes

Viven 4 gusanos en el árbol, el pastel de cumpleaños tiene 4 velas... “Yo tengo 4 años”. Este libro es una forma muy especial de celebrar el cuarto cumpleaños de los más pequeños. Con él aprenderán a decir su edad de manera lúdica y divertida, ¡y podrán demostrar a todo el mundo que ya son mayores!

Discusses the role of the gases surrounding Earth and the relationship of the atmosphere to weather. Presented in English and Spanish.

From the candiru to the lionfish, there are so many kinds of fish on Earth. While all have different methods of production, the basic life cycle is the same, from egg to spawning swimmers. Readers are introduced to this general cycle as well as the important vocabulary needed to talk about it, such as “fry” and “spawning.” Accessible language and simple diagrams throughout the book provide a way for struggling readers to tackle science curriculum content.

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.