Un día de trabajo de un biólogo molecular (A Day at Work with a Molecular Biologist)

Summer is the time for sunshine and sand, long days, and of course, vacation! Welcome in Summer with this delightful fiction title, which features a narrator and the fun activities they explore with their family and friends. Readers learn all about what makes Summer special and are encouraged to draw connections between the text and their own lives. Colorful illustrations allow readers to visualize concepts presented in the text, bringing this engaging narrative to life. Simple, age appropriate language is perfect for young readers.

Bike riding is a lot of fun, but it can also be dangerous. Read about how people have made cycling safe over the years. Learn how bicycles have changed over time and how bike parts, equipment, and trails make cycling safer. Created in collaboration with the Smithsonian Institution, this Spanish book will ignite a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from Smithsonian employees...

The United States grew rapidly from the time of the Louisiana Purchase to the building of the Transcontinental Railroad. All of this expansion came at the expense of Native American populations that had either lived in the region for centuries or been forced there from ancestral homes in the East. Tribes memorably fought on their own and together in an doomed effort to retain the land and a lifestyle that had long sustained their families. This book outlines some of the major conflicts of the Westward Expansion, and of the treaties and were signed, and often broken, by representatives of the...

Climb aboard for a journey into the world of trains! In this fascinating, Spanish-translated nonfiction title, readers learn about the history of trains, the different uses for them, and the different types and parts including freight cars, box cars, passenger cars, and the caboose. With detailed photos, informative text, and intriguing facts, this book will have readers delighted from cover to cover! This 6-Pack includes six copies of this title and a lesson plan.

Discover That There Are 6000 Different Kinds Of Dragonflies Because They Are Predators, How Their Body Is Made Up, And How They Reproduce.