Greg Roza

The night sky seems so constant. In reality, stars are being born, burning, and dying all the time. There's just so many of them, and they're so far away that we barely notice without the help of sophisticated scientific tools such as the Hubble Space Telescope. In this book, budding astronomers will learn about the life cycle of a star. They'll read how stars differ and how our sun compares to some of these stars. Incredible, colorful photographs...

Black holes seem like the stuff of science fiction. It's incredible to think there's a mass in the universe with such a strong pull of gravity that not even light can escape it. But it's not science fiction, and there isn't just one black hole out there. Diagrams and photographs help readers explore...

Bacteria are some of the smallest living things on Earth. They can live just about anywhere-from the hottest desert to the deepest ocean. Billions of bacteria even live on and inside our bodies! Many bacteria are helpful, but some cause deadly diseases. Inside this book, readers will view amazing close-up photographs as they learn about the history of microbiology and how to keep bacteria from making them sick. Fact boxes summarize interesting tidbits,...

Describes the various parts of the muscular system, and discusses exercise, the effects of diet on the muscles, muscular diseases, and related topics.

"Makerspaces are all about teaching through collaboration. This title grabs the attention of young people who are musically as well as technically inclined by showing them that they can make their own instrumentsliterally. Recent technologies such as 3-D printing and Arduino microcontrollers allow virtually anyone to make a fully functioning instrument. This resource shows young people exactly how to take advantage of the burgeoning makerspaces phenomenon...

Readers find out what life is like for a murder of crows through the help of accessible text and eye-catching photographs. Crows are some of the smartest animals on the planet. They can remember people's faces and warn each other of danger. Some crows even know how to use simple tools. These fascinating facts and more are waiting to be, discovered by readers. A useful graphic organizer provides additional information about these amazing animals.

A step-by-step introduction to Brazilian jiu-jitsu, covering the history of the martial art, the fighters who are stars, and with stop-action photographs of the basic moves.

Stories have been a part of our lives since birth. Many parents were reading and recounting stories and tales to us before we could talk. This instructive volume explains what constitutes a work of fiction as well as why it's written in the first place, and highlights important terminology, such as conflict. Key examples feature famous fiction authors and their work, comparing and contrasting their styles, and highlighting some of the prominent features...

It's a very special day for Dad. Tara makes pancakes before he wakes up. She takes him to all his favorite places in town to celebrate Father's Day.

Even when they try to relax, the Power Coders get swept up in a coding challenge! While on the way to a local park, Tommy explains to the Power Coders that his brother, Evan, is making a robot for a "battle bot" competition. Evan may know how to build a robot, but can he create the code needed to make it work? He will after the Power Coders lend him a hand. Readers will enjoy the Power Coders' latest coding challenge, which includes a glimpse into...