And they did so during a time when being black and a woman limited what they could do. But they worked hard. They persisted. And they used their genius minds to change the world.In this illustrated picture book edition, we explore the story of four female African American mathematicians at NASA, known as "colored computers," and how they overcame gender and racial barriers to succeed in a highly challenging STEM-based career.

    So what do zoos do with all of that poo? This zany, fact-filled romp explores zoo poo, from cube-shaped wombat poo to white hyena scat, and all of the places it ends up, including in science labs and elephant-poo paper—even backyard gardens!

    Huge numbers are hard to comprehend. This book explains quantities in terms children can understand. For example, one million dollars could buy two full pizzas a day for more than sixty-eight years.

    "Once you are aware of the wonder and beauty of earth, you will want to learn about it," wrote Rachel Carson, the pioneering environmentalist. She wrote Silent Spring, the book that woke people up to the harmful impact humans were having on our planet.

    Acclaimed naturalist and illustrator Jim Arnosky helps birds and imaginations take glorious flight in this breathtaking nonfiction picture book with six giant gatefolds.Arnosky will draw out kids' inner explorer as he explains why there are no feathers on a vulture's head, which bird is the deep-diving champ, what makes an owls's wings perfectly silent in flight, and much more.Readers can use this gorgeously illustrated book to bring the wilderness right into their rooms-or as a guide on their next expedition.

    Fractals can also be quantified mathematically. Here is an elegant introduction to fractals through examples that can be seen in parks, rivers, and our very own backyards. Readers will be fascinated to learn that broccoli florets are fractals—just like mountain ranges, river systems, and trees—and will share in the wonder of math as it is reflected in the world around us. Perfect for any elementary school classroom or library, Mysterious Patterns is an exciting interdisciplinary introduction to repeating patterns.

    In this fun and fascinating nonfiction picture book, join world-renowned photographers and biologists on their close encounters with the curious creatures that make their own light. Author’s note and bibliography included.

    This observation would guide the scientist to a groundbreaking discovery about elephant communication: elephants actually listen with their limbs.

    Over 7,000 years ago Native Americans settled on the Nashua River, a beautiful and leafy valley. But the industrialization of nearby areas would lead to the deterioration of natural habitats. Each double spread examines brief periods of time when the river and surrounding areas teemed with wildlife. Lynne Cherry’s contrasting illustrations of the lush valley and the eventual polluted river deliver an astonishing look at our dramatic need for conservation efforts. This pictorial history of the river, edging towards a hopeful scene of modern-day descendants of both Native Americans and European settlers who come together to combat pollution and restore the beauty of the river, is an intelligent tale that shows young readers how they can do their part in taking care of the world around them, one river at a time.

    They tried wild things like drinking a glass full of millipedes or putting some mustard on one's head.  Some of the cures worked, and some of them…well, let’s just say that millipedes, living or dead, are not meant to be ingested.Carlyn Beccia takes readers on a colorful and funny medical mystery tour to discover that while times may have changed, many of today’s most reliable cure-alls have their roots in some very peculiar practices, and so relevant connections can be drawn from what they did then to what we do now.

    

    Join Ellie, a skin cell who lives on the derrière of a Boston Terrier, as she tells readers all about the amazing cells that make up every living thing on Earth.Did you know that every human is the proud owner of 37 trillion cells? (Give or take a few trillion.) They’re the itty-bitty building blocks that stack together to make you, you! Join a smart and silly skin cell named Ellie as she explains what a cell looks like, what a cell does, how cells divide and multiply, and much, much more in this fascinating and funny nonfiction picture book.

    As she listened to the preacher’s words, smooth as glass, she sat up tall. And when she heard the plan—picket those white stores! March to protest those unfair laws! Fill the jails!—she stepped right up and said, I’ll do it! She was going to j-a-a-il!Audrey Faye Hendricks was confident and bold and brave as can be, and hers is the remarkable and inspiring story of one child’s role in the Civil Rights Movement.

    In simple, evocative language, Helen Frost offers a hint at the many tiny creatures around us. And in astonishing close-up photographs, Rick Lieder captures the glint of a katydid's eye, the glow of a firefly, and many more living wonders just awaiting discovery. Fascinating facts about all the creatures pictured may be found at the end.

    Today, more than one billion people worldwide live in volcanic danger zones. In this riveting nonfiction book—filled with spectacular photographs and sidebars—Rusch reveals the perilous, adrenaline-fueled, life-saving work of an international volcano crisis team (VDAP) and the sleeping giants they study, from Colombia to the Philippines, from Chile to Indonesia.