Karen Kenney: 29 books

The idea that many teens have of gangs is one that is outdated and often influenced by television and movies. But this "hidden story" of gangs and gang violence delves deeper into gangs, breaking down some of the stereotypes and showing readers some of the reasons why gangs exist and what...

Have you ever seen a mysterious glowing light in the sky? Or wondered if there is life on other planets? Explore alien and UFO sightings—from ancient Egypt to Roswell, New Mexico. Find out about famous fakes and explore the evidence behind strange incidents that even scientists can't quite explain. It's an adventure beyond our world!

What if people could make toys, foods, or even body parts using a computer printer? They can! Modern programmers and scientists have figured out a way to make three-dimensional versions of almost anything they can design on a computer. This title covers the latest, greatest advances in 3D printing,...

Will astronauts one day travel all the way to Mars? Get informed about Mars research and plans for Mars exploration, and discover key aspects of the science and technology involved in solving the mysteries of the red planet.

Maybe you love baking or doing martial arts—or perhaps soccer is more your thing. You can make a video about all these interests and more! Share your passions with the world by recording them and posting them online. Learn the first steps involved in capturing what you love on film, and find out...

Did you know some of Saturn's sixty-plus moons are covered with icy methane oceans? Or that a huge storm on Jupiter has raged for more than three hundred years? Discover what scientists are currently researching about the planets in our solar system. Incredible photos and STEM Focus sidebars deliver additional insights.

Meet the science experts who study specimens of extreme longevity in both the plant and animal kingdoms, such as the 80,000-year-old root system of Pando (a colony of male quaking aspens), 11,000-year-old deep-sea sponges, and 400-year-old sharks. Learn about technologies used to determine age and...

You've probably noticed that when water gets really cold, it freezes. And you've probably seen steam coming from a pot of boiling water. But do you know why that happens? Do you know how wood burns or what's inside a fire extinguisher? When scientists have questions like these, they conduct experiments...

You've probably heard lots of things about energy. You may know that your body needs energy or that there's energy in sunlight. But what exactly is energy? Where does it come from and where does it go? How do plants, people, and machines use energy? Scientists have wondered about these things too....

Do you know who invented the airplane? Most Americans believe it was Wilbur and Orville Wright. But what if that's not true? What if a German immigrant named Gustave Whitehead beat the Wrights to the punch, flying a plane he designed several years before Wilbur and Orville took their famous flight?...

Forces and motion are at work all around you—when you kick a ball, ride a bike, or drop a book. But what exactly are forces? And how do they make things move? For thousands of years, scientists have been testing hypotheses about forces and motion and learning from the results of their experiments....

Do you love to write? Are you into self-expression? Blogging is a great way to share your obsession with travel, your passion for reading, or your unique thoughts about the world. The possibilities are endless when it comes to blogging! Learn how to get started as a blogger in just a few easy steps,...

In August 2011, an expedition in the Gobi Desert region of Mongolia uncovered a long-forgotten section of the Great Wall of China. In 2015, nine new sections of the wall were located in northwest China. Researchers and archaeologists have worked for years to uncover the secrets of this incredible...

Ever hear a scary story and wonder if it really happened? Your friend's cousin swears it's true. But are there actually alligators lurking in the sewers? Or ghostly hitchhikers haunting lonely roads at night? Read on to learn about more creepy urban legends—from Bigfoot to Bloody Mary—and find out the truth!