In the early morning of April 26, 1986, a reactor at the Chernobyl nuclear power plant became unstable, causing a huge explosion. But the disaster was only just beginning. Follow along with the true story of a doomed power plant that is still dangerous today. Then, review what you've learned with a recap timeline and a quick quiz to check how much doomed history you remember.

Many of today's communications travel over networks. Networks connect people all over the world through computers and mobile devices, but how does it work? Young learners will discover how an email works, how computers talk to one another, and how documents and programs are stored in the cloud. Readers will also learn about network safety and how to protect themselves from hackers and viruses. Easy-to-read infographics and simple language make this...

People don't sleep standing up. But cows do! Why? You have questions, and this book has the answers. Find out all about cows and why they don't need to lie down to catch some Zzzzzs.

The world is full of colorful birds. But why are flamingos bright pink? You have questions and this book has answers. Find out about flamingos, including what they eat and their behavior.

Nitrogen is an important ingredient in the proteins that make our body cells. Humans have found lots of other incredible uses for this element, too. We use it to freeze food, preserve blood, and remove tattoos and skin cancer, and that's just in nitrogen's liquid form. Readers of this informative book will learn about these and other uses for nitrogen. An immersive design and straightforward text help readers engage. A concluding quiz lets readers...

Oxygen is an incredible element, both on its own and combined with others. From the air we breathe to the water we drink, oxygen is an essential element for life as we know it. This informative introduction to oxygen teaches readers about its discovery and many uses. A handy quiz at the end lets readers test their knowledge. Illustrations and photographs bring the lesson into sharp focus, while a stylish design engages readers. Accessible, straightforward...

Life as we know it couldn't exist without water, and water cannot exist without hydrogen. This essential element plays an important role in both human bodies and stars. What other incredible things can this life-giving element do? Readers of this informative book will find out. They'll learn how hydrogen was discovered and the many ways humans use it. A sleek design, illustrations, and photographs help readers engage with the text. A concluding quiz...

This colorful, dynamic volume explains to upper-elementary-level readers the exciting science behind the sun and all its fantastic phenomena. The narrative covers the sun's role from ancient mythology and astronomy through modern discoveries before going in-depth and inside the sun's layers, breaking down the chemistry and physics behind the sun's composition and atmosphere. Thrilling events such as solar flares, eclipses, and star formation are explained...

Organic doesn't only refer to fresh vegetables. In science, "organic" describes natural matter or compounds with a carbon base. Readers will learn all about the element of carbon, from its discovery to the role it plays in living things. They'll see real-life examples of how humans use carbon in various industries. A charming design with illustrations and photographs bring the lesson into detailed focus. Accessible text and a concluding quiz help...

We're only just beginning to learn about the incomprehensibly vast universe that exists beyond the edges of our own solar system. This fascinating guide touches on constellations, galaxies, star types, the life cycle of stars, nebulae, quasars, dark matter, black holes, exoplanets, the search for extraterrestrial life, the "Goldilocks zone," habitable planets, and more. Stunning, high definition, NASA-quality photos of deep space and a dynamic design...