But do you know about the mathematical genius who made sure that Apollo 13 returned safely home?As a child, Katherine Johnson loved to count. She counted the steps on the road, the number of dishes and spoons she washed in the kitchen sink, everything! Boundless, curious, and excited by calculations, young Katherine longed to know as much as she could about math, about the universe.From Katherine's early beginnings as a gifted student to her heroic accomplishments as a prominent mathematician at NASA, this is the story of a groundbreaking American woman who not only calculated the course of moon landings but, in turn, saved lives and made enormous contributions to history.

     If there was one thing James loved to do more than anything else, it was to be in the great outdoors watching his beloved feathered friends. In the fall of 1804, he was determined to find out if the birds nesting near his Pennsylvania home would really return the following spring. Through careful observation, James laid the foundation for all that we know about migration patterns today. Capturing the early passion of this bird-obsessed young man as well as the meticulous study and scientific methods behind his research, this lively, gorgeously illustrated biography will leave young readers listening intently for the call of birds large and small near their own home.

    Shining light on all kinds of fascinating facts about our moon, this simple, introductory book includes information on how the moon affects the oceans' tides, why the same side of the moon always faces earth, why we have eclipses, and more.Using her signature combination of colorful, clear illustrations and accessible text, Gail Gibbons reinforces important vocabulary with simple explanations, perfect for budding astronomers. Legends about the moon, trivia, and facts about the moon landing are also included.

    All around the world -- in the sea, in the soil, in the air, and in your body -- there are living things so tiny that millions could fit on an ant's antenna. They're busy doing all sorts of things, from giving you a cold and making yogurt to eroding mountains and helping to make the air we breathe. If you could see them with your eye, you'd find that they all look different, and that they're really good at changing things into something else and at making many more microbes like themselves! From Nicola Davies comes a first exploration for young readers of the world's tiniest living organisms.

    On a cold January day in 2017, nearly two months before her due date, Nile hippopotamus Bibi gave her keepers at the Cincinnati Zoo & Botanical Garden a big (little) surprise - a tiny newborn hippo, no bigger than a football.  The first premature hippo born and raised in captivity, baby Fiona was an underdog from the start:  she couldn't nurse, she couldn't stay hydrated, and she wasn't thriving. But the staff at the zoo knew they could save her.  It would take creative thinking and teamwork. They would have to study the makeup of hippo milk for the first time ever and reach out to medical colleagues, including a team at the local Children's Hospital with superior vein-finding skills,  to ensure that Fiona would begin to gain weight and become healthy. When Fiona began to thrive, her star began to rise, and soon she became an internet sensation, her picture and videos garnering thousands and thousands of likes and fans on Instagram and Facebook.  Now a Fiona appearance at the Zoo mimics a Beatles concert.  What made this little, now big, hippo such a big hit with people all over the world?  And what's in store for her and her family in the future?

    Each book tells the story of one of America's icons in a lively, conversational way that works well for the youngest nonfiction readers and that always includes the hero's childhood influences. At the back are an excellent timeline and photos. This volume tells the story of Neil Armstrong from his childhood on a farm to a career as an engineer and pilot and how he became the first person on the moon. All of the small steps he took in life--even his failures--led up to his steps on the moon.

    What's It Like to Be a Fish? clearly explains how a fish's body is perfectly suited to life underwater, just as our bodies are suited for life on land.

    With breathtaking full-page images, Nic introduces young readers to the beauty and diversity of these amazing insects, from the shockingly bright blue morpho butterfly to the nearly transparent glasswing butterfly to the mouthless luna moth. The simple, engaging text presents both basic information and fun, quirky facts about the insects' appearance, habits, and life cycle--including a double gatefold spread of a butterfly in flight.

    ed. of: Green grass and white milk. 1974.

    It's not only an amazing sight to behold for the lucky residents of the area, but also a true miracle of nature. This easy reader follows the 2,500 mile-long journey of the Monarchs, with both full color illustrations and photographs.

    Very young children will discover the secrets of metamorphosis as they enjoy this story of the life of a familiar backyard creature.

    It covers such topics as the slug's two pairs of tentacles, one pair for seeing, one pair for smelling (it can see you're a kid and smell like broccoli), its breathing hole (on the side of its head!), and its pretty gross mucous covering (in order to find a partner, the slug can follow another slug's mucous trail. True love!). Although silly and off-the-wall, The Slug contains real information that will tie in with curriculum.

    Did you know that hippos can't swim? This hilarious book is full of fun facts about all sorts of animals, from sleepy ants to jellyfish that glow!Did you know that a zebra's stripes are as unique as a human's fingerprints?How about that ants take about 250 naps per day?Or that some jellyfish can glow--and that's called bioluminescence?Colorful, humorous illustrations accompany tons of cool facts about animals of all shapes, sizes, speeds, and species in this lively book that makes nonfiction fun!

    A perfect introduction to mathematical concepts for young readers, written by a Newbery honor-winning author!This colorfully illustrated biography of the Greek philosopher and scientist Eratosthenes, who compiled the first geography book and accurately measured the globe's circumference, is just right for budding mathematicians, scientists, historians, and librarians! Filled with fascinating details about Eratosthenes's world (and in print since 1994), kids are sure to flip through the pages time and again.

    Spring after spring, year after year, she observed how all living things are connected. And as an adult, Rachel watched and listened as the natural world she loved so much began to fall silent. Spring After Spring traces Rachel’s journey as scientist and writer, speaking truth to an often hostile world through her book, and ultimately paving the way for the modern environmental movement.