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Our planet is facing a range of challenges from global warming and environmental abuse from its inhabitants. Using an inquiry approach, this series explores these serious issues, offering accessible scientific explanations that reveal how the Earth’s processes are interlinked – and how one event can trigger a chain reaction throughout the planet that can have consequential effects on both humans and nature. Each volume includes fascinating case studies, critical thinking questions, and projected future outcomes and potential solutions to these important global issues.

Unsung Heroes

Unsung Heroes shines a spotlight on underrepresented voices throughout history. Featuring racial minorities and other marginalized contributors who are routinely left out of history books, this biography series examines the work of professionals throughout US history and in the fields of science, technology, and social justice. Each book profiles 12 individuals and their impressive contributions as well as the challenges they faced.

Unwrapped: Marvelous Mummies

Mummies hold fascinating secrets. They teach us hidden facts about people, animals, and cultures from the past. This narrative nonfiction series examines mummies from all over the world and different types of mummification. Look inside to unwrap these ancient and modern treasures! Each book in this series includes a table of contents, glossary of key words, index, author biography, sidebars, and mummy map.

Unwritten

In this fantasy middle-grade novel, twelve-year-old storybook character Gracie Freeman lives in the real world but longs to discover what happened in the story she came from. When she finally gets her chance, the truth isn't what she was expecting.

Up and Down

Familiar phrases and unusual characters accompany a boy as he ascends and descends in an elevator.

Up Close

Discover the amazing world through curious and fascinating up-close photography! Transform the ordinary into something extraordinary with exciting micro and macro photography! This series explores different animals of our beautiful and curious world, pairing extreme, hyper-detailed images with fun facts. Let's turn up the ZOOM and discover a whole new way of seeing the world.

Up for Sale

Up for Sale tackles human trafficking and modern slavery around the world, from forced labor to sexual exploitation. It offersáheart-wrenching personal accounts from survivors and information about the global fight against human trafficking.

Upfront Health (21st Century Skills Library)

For young people, leading a healthy lifestyle requires education and empowerment. In the Upfront Health series, readers will explore the social aspects and health effects of common issues they and their peers are facing, and ways to make healthy choices. Side bars challenge and expand readers' thinking while relating topics to 21st Century skills and themes--from creativity and innovation to financial literacy.

Upside Down Babies

Once when the world tipped upside down, The earth went blue and the sky went brown. All the baby animals tumbled out of bed And ended up with very funny mums instead...

Up-To-Speed Math (Pre-Algebr™)

This series brings students who have gaps in their understanding of math skills and concepts up to speed. “Low Gear” lessons review the basics; “High Gear” lessons extend understanding. 96-page worktexts are built around NCTM standards.

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