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.

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of reusing resources and knowledge. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how reusing resources and knowledge can be helpful in the real world. In this book, readers learn about the Bill of Rights and how parts of it...

Very young children can get to know garden animals with this velvet-covered cloth book with interior flaps. The little fish and the frog from the bond, the bee in search of flowers, and little birds will join them in their first discoveries.

Did you know that jellyfish are found in every ocean? A group of jellyfish is called a bloom. Learn more about these stinging drifters in All About Jellyfish.

Presents a multicultural point of view on the various aspects of love and how they relate to tolerance and goodwill.