Una docena de primos

Explores The Machines Used And The Physics Involved That Make Moving From One Level To Another In A City Environment Easier.

Libro infantil que presenta de una forma jocosa y divertida las dificultades que trae la lluvia para el desenvolvimiento de la vida cotidiana para los seres humanos, pero también destaca las ventajas para los demás seres vivos y la naturaleza.

It is the third Monday in January and school is closed. But do you know why? It's Martin Luther King Jr. Day. Turn the pages of this book to find out what dream Dr. King shared with the world, who Mohandas Gandhi was, how one brave woman helped Martin Luther King Jr. change history. Each book in the Holiday Histories series describes one of America's holidays or special days. Explore the history of each day and learn the real reason why it is important. Discover what special meaning each day might have for you.

Colorful photographs and English and Spanish text teach children the names for some of the parts of the human body they can see. On board pages.

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.