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Unexplained, The

The world is full of mysteries. Do Bigfoot, the Loch Ness Monster, and ghosts exist? Can people really use ESP to see events with their mind? Has wreckage from a UFO been recovered? What are the different kinds of near-death experiences people have reported? All of these questions are addressed in this series that provides arguments for and against the existence of these unexplained phenomena.

Unexplained, The  

The world is full of mysteries. Do Bigfoot, the Loch Ness Monster, and ghosts exist? Can people really use ESP to see events with their mind? Has wreckage from a UFO been recovered? What are the different kinds of near-death experiences people have reported? All of these questions are addressed in this series that provides arguments for and against the existence of these unexplained phenomena.

Unexplained, The (Torque)

The world is full of mysteries. Do Bigfoot, the Loch Ness Monster, and ghosts exist? Can people really use ESP to see events with their mind? Has wreckage from a UFO been recovered? What are the different kinds of near-death experiences people have reported? All of these questions are addressed in this series that provides arguments for and against the existence of these unexplained phenomena.

United States Presidents, The (Checkerboard Library)

Learn about the individuals who have held this important office in the United Stated Presidents series. Each book explores one president?s childhood, time in office, accomplishments, and legacy. Discover what it takes to be presidents, how a president is elected, and how the US Government works. Read this series to experience history through the leaders who shaped it.

Universe Is a Tree, The

This collection of stories, proverbs, and poems about trees from around the world reveals that a tree's roots not only go down deep into the earth, but its branches also reach up and out into the universe, connecting us all.

Unnatural Disasters: Human Error, Design Flaws, and Bad Decisions (21st Century Skills Library)

Human modification of the environment always carries a risk of accident and folly. With this series, young readers explore the causes and consequences of some of the most major environmental catastrophes of the past 100 years. Guided by compelling questions such as, ""What led to these disasters?,"" ""Who was impacted by them?,"" and ""What changed in their aftermath?"" this interdisciplinary series blends social studies and science content. Ultimately, it pushes students to consider how humans

Unofficial Guides (21st Century Skills Innovation Library)

The Unofficial Guides series explores the various aspects of today's most popular games and programs including LEGO Mindstorms and Minecraft. Each collection covers topics ranging from basic to advanced. This series is perfect for the hands-on techie. This series is perfect for the younger hands-on techie. Includes table of contents, glossary, and index-as well as sources for further reading.

Unplugged Activities for Future Coders

Computer science is the at the heart of the world's biggest industries, but getting started in programming can be tough. Coding courses can be expensive, and not everyone has access to them. This must-have set provides access to computer science, without even requiring a computer. Instead, this set uses common materials kids can find around the house to both learn the building blocks of modern coding and get hands-on experience putting important coding principles to use.

Unplugged: Ella Gets Her Family Back

When Ella finally makes her move, it gets everyone's attention. At first there is some confusion--could Ella just want a cell phone of her own?† But Ella makes clear that what she really wants is her family back. Will they all agree that it's time to make some changes? And what word do you think Ella will use the next time she plays Hangman with her brother Carlos? This is a lively book about the issue of managing technology so that it can become more family friendly.

Unprovoked War, The: Russia’s Invasion of Ukraine

In February 2022, Russia invaded Ukraine in anticipation of a quick and complete victory. That did not happen. Instead, Russia’s brutal, unprovoked war has run into determined resistance from the Ukrainian government and people. Even so, Russia’s war on Ukraine has destroyed huge swaths of the country, including hospitals, apartment buildings, and schools. It has displaced millions and killed and injured thousands. Much of the global community has rallied around Ukraine, providing weapons and fi