Technology Nonfiction

In May 1869, the U.S. railroad network unified when the Central Pacific and Union Pacific railroads came together in Promontory, Utah. The Transcontinental Railroad: The Gateway to the West discusses this important milestone in the expansion of the United States and its impact on the nation, both positive and negative. This book tells how the east-west railroad played an integral role in opening western markets to the residents of the eastern United States, but it also examines how the railroad led to the demise of many American Indian groups in the West.

What do you know about dolphins? Beginning listeners will get their feet wet with these literacy-building introductions to ocean animals. In addition to curricular information, social-emotional questions encourage reflection and family/educator engagement tips help connect the topic to the listener's life.

What color are your eyes? Brown is the most common color. But some people have blue, green, gray, hazel, or amber eyes. What determines your eye color? Listen to this book to find out about how your genes affect your physical features.

Both Thomas Edison and Henry Ford started off as insatiably curious tinkerers. That curiosity led them to become inventors - with very different results. As Edison invented hit after commercial hit, gaining fame and fortune, Henry struggled to make a single invention (an affordable car) work. Witnessing Thomas' glorious career from afar, a frustrated Henry wondered about the secret to his success.

Hibernation is a cycle that some animals go through every year. Most people know that bears hibernate. But why do they hibernate? And what other animals hibernate?

How does an egg become a butterfly? Follow each step in nature's cycle - from egg to brightly colored insect - in this fascinating book!

How does a foal grow into a horse? Follow each step in nature's cycle - from birth to stallion or mare - in this fascinating book!

What does it mean to migrate? Discover which animals migrate and why they migrate through detailed, simple text.

Compare different types of scales and discover how they protect the bodies of fish and reptiles.

Some mammals have a little fur or hair, others have a lot! Learn how fur helps these animals survive.

How does a tadpole become a frog? Follow each step in nature's cycle - from egg to adulthood - in this fascinating book!

Guinea pigs are cuddly pets! These furry rodents like to snuggle with their owners. Young students can learn about the care and lives of these favorite pets through simple, predictable text in this fun title.

Featuring 18 trailblazing Black women in American history, Little Leaders educates and inspires as it relates true stories of breaking boundaries and achieving beyond expectations. Among these biographies, listeners will find heroes, role models, and everyday women who did extraordinary things - bold women whose actions and beliefs contributed to making the world better for generations of girls and women to come.

From the New York Times best-selling author of Little Leaders: Bold Women in Black History comes the highly anticipated follow-up, a beautifully illustrated collectible detailing the lives of women creators around the world.

¿Qué tienen en común y en qué se diferencian los cangrejos y las langostas? Aunque ambos animales viven en el océano, uno prefiere nadar y el otro caminar. Uno puede ser encontrado en pozas costeras y el otro en alta mar. Ambos tienen esqueletos en la parte externa de sus cuerpos. ¡Hay mucho más sobre estos animales además de ser un buen alimento para nosotros! Aprende sobre estos crustáceos fascinantes en la edición más reciente de la serie de Un libro de comparaciones y contrastes.

Las focas y los leones marinos tienen un aspecto similar y algunas veces es complicado saber cuál es cuál. Ambos mamíferos marinos nadan con aletas y pueden encontrarse en océanos alrededor del mundo. Uno tiene orejas visibles, mientras que las orejas del otro no son externas. Uno atraviesa el agua utilizando sus aletas traseras, mientras que el otro usa sus aletas frontales para nadar. Ya sobre tierra, uno rebota hacia sus alrededores, mientras que el otro puede “caminar” sobre sus aletas.

¿Sabías que hay más insectos que cualquier otro grupo de animales? La diversidad de insectos es asombrosa. ¿Qué tienen en común las hormigas con las abejas? ¿Cuál es la diferencia entre una mariposa y una polilla? ¿Cómo están relacionados los gorgojos y las mariquitas? Algunos insectos tienen un par de alas, otros tienen dos pares y hay algunos que no tienen alas. Algunos insectos, aunque no todos, tienen un caparazón duro y externo (exoesqueleto). Aprende en qué se parecen y diferencian los insectos en esta nueva entrega de la serie de Comparaciones y Contrastes.

Welcome to "A-Z Alphabet, Astronomy & 'I Am' Affirmations for Kids." This journey combines cosmic exploration with self-empowerment, guiding children through an adventure of learning and affirmation.

Welcome to the United States of America! The USA is the third largest country in the world and also, one of the most beautiful. It is full of lakes and rivers, mountains and canyons, beaches and deserts. It has many different trees and flowers and all sorts of different crops grown for use as food. And, of course, America has birds and animals of all kinds. Last, but not least, the United States has about 300 million people from many different backgrounds and cultures.

You're probably familiar with many of the common categories scientists use for animals: warm-blooded or cold-blooded, nocturnal or diurnal. But what about the animals that don't fit in? Sharks cannot be classified as warm or cold-blooded—they are somewhere in-between. And Eurasian eagle owls don't hunt during the day or night. Instead, they swoop through the trees at dawn and dusk. Author and science educator Jessica Fries-Gaither introduces eight common categories scientists use and the animals that break those rules.