The true story of how a scientist saved the planet from environmental disaster. Mexican American Mario Molina is a modern-day hero who helped solve the ozone crisis of the 1980s. Growing up in Mexico City, Mario was a curious boy who studied hidden worlds through a microscope. As a young man in California, he discovered that CFCs, used in millions of refrigerators and spray cans, were tearing a hole in the earth's protective ozone layer. Mario knew the world had to be warned--and quickly. Today Mario is a Nobel laureate and a recipient of the Presidential Medal of Freedom. His inspiring story gives hope in the fight against global warming.

America is the greatest democracy in the world . . . isn't it? Author Elizabeth Rusch examines some of the more problematic aspects of our government but, more importantly, offers ways for young people to fix them. The political landscape has never been so tumultuous: issues with the electoral college, gerrymandering, voter suppression, and a lack of representation in the polls and in our leadership have led to Americans of all ages asking, How did we get here? The power to change lies with the citizens of this great country--especially teens Rather than pointing fingers at people and political parties, You Call This Democracy? looks at flaws in the system--and offers a real way out of the mess we are in. Each chapter breaks down a different problem plaguing American democracy, exploring how it's undemocratic, offering possible solutions (with examples of real-life teens who have already started working toward them), and suggesting ways to effect change--starting NOW

A boy rides a bicycle down a dusty road. But in his mind, he envisions himself traveling at a speed beyond imagining, on a beam of light. This brilliant mind will one day offer up some of the most revolutionary ideas ever conceived. From a boy endlessly fascinated by the wonders around him, Albert Einstein ultimately grows into a man of genius recognized the world over for profoundly illuminating our understanding of the universe. Jennifer Berne and Vladimir Radunsky invite the reader to travel along with Einstein on a journey full of curiosity, laughter, and scientific discovery. Parents and children alike will appreciate this moving story of the powerful difference imagination can make in any life.

Water, air, sunlight, plants . . . we need these elements to live in this world. But does the world need us? And what would happen to the world if humans were gone? This is the premise of a thought-provoking picture book from John Coy. His insightful text explores how nature would reclaim the planet, accompanied by Natalie Capannelli's gorgeous watercolor illustrations. Back matter gives further context and discusses what kids (and all of us) can do to truly help our planet.

This is a fascinating and enjoyable popular science book on gravity and black holes. It offers an absorbing account on the history of research on the universe and gravity from Aristotle via Copernicus via Newton to Einstein. The author possesses high literary qualities and is celebrated relativist. The physics of black holes constitutes one of the most fascinating chapters in modern science. At the same time, there is a fanciful quality associated with this strange and beautiful entity. The black hole story is undoubtedly an adventure through physics, philosophy, history, fiction and fantasy. This book is an attempt to blend all these elements together.

Click flashlights, light lanterns, and get ready to turn electric lights out to celebrate Earth Hour! Wherever you are, you can help our planet. Kids around the world use electric energy to do all kinds of things--adults do, too! From cleaning the clothes we play in, to lighting up our dinner tables, to keeping us warm and toasty when the weather is cold, electricity is a huge part of our lives. Unfortunately, it can also have a big impact on our planet. Earth Hour--a worldwide movement in support of energy conservation and sustainability--takes place each March and is sponsored by the World Wildlife Fund for Nature (WWF). During Earth Hour, individuals, communities, and businesses in more than 7,000 cities turn off nonessential electric lights for one hour. Across each continent--from the Eiffel Tower to the Great Wall of China to the Statue of Liberty--one small act reminds all of us of our enormous impact on planet Earth.

YA. An eleven-year-old boy searches for six magical signs in order to save the world from the threatening evil of the Dark.