Calentamiento global (Global Warming)

The use of calendars dates back thousands of years. Why are we driven to record time, and what would happen if we did not? Who created the concept of calendars? Why do different cultures use different calendar systems? And why are calendars so important to us? It is about "time" we found out! Created in collaboration with the Smithsonian Institution, this Spanish-translated Smithsonian Informational Text builds reading skills while engaging students' curiosity about STEAM topics through real-world examples. Packed with factoids and informative sidebars, it features a hands-on STEAM challenge...

Science fairs can be a timely assignment, but they can also be fun, rewarding, and sometimes help you to earn scholarships and prizes, too! The recipe for a great science fair or engineering project has just a couple of simple ingredients: a topic you care about and a question you can test. Learn every step of how to make your next science fair or engineering project a winner by following the detailed instructions, helpful hints, and design information in this title. So, don’t be scared, be prepared, and you are sure to have science fair success! This book allows students to understand how...

*Indie Next List Pick* *Junior Library Guild Selection* “An appealing tribute and successful remedy to the lack of titles about the groundbreaking librarian…a must-have for all libraries.” –School Library Journal (starred review) The Spanish language edition of Planting Stories—an inspiring picture book biography of storyteller, puppeteer, and New York City’s first Puerto Rican librarian, who championed bilingual literature. When she came to America in 1921, Pura Belpré carried the cuentos folklóricos of her Puerto Rican homeland. Finding a new home at the New York Public...

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...