But people need a map to find it. And in 1882 when surveyors set out to map a part of Minnesota, they got confused and somehow mapped a great swath of ancient trees as a lake. For more than seventy-five years, the mistake stayed on the map, and the forest remained safe from logging—no lumber baron expects to find timber in a lake, after all. The Lost Forest tells the story of this lucky error and of the 144 acres of old-growth red and white pine it preserved. With gentle humor, Phyllis Root introduces readers to the men at their daunting task, trekking across Minnesota, measuring and marking the vast land into townships and sections and quarters. She takes us deep into a stand of virgin pine, one of the last and largest in the state, where U.S. history and natural history meet. With the help of Betsy Bowen’s finely observed and beautiful illustrations, she shows us all the life that can be found in the Lost Forest.Accompanying the story is a wealth of information about the Cadastral Survey and about the plants and animals that inhabit forests—making the book a valuable guide for readers who might want to look even deeper into the history of Minnesota, the flora and fauna of old-growth forests, and the apportioning of land in America.

    His popular TV series brought whales, otters, and dolphins right into people s living rooms. Now, in this exciting picturebook biography, Dan Yaccarino introduces young readers to the man behind the snorkel. From the first moment he got a glimpse of what lived under the ocean s waves, Cousteau was hooked. And so he set sail aboard the Calypso to see the sea. He and his team of scientists invented diving equipment and waterproof cameras. They made films and televisions shows and wrote books so they could share what they learned. The oceans were a vast unexplored world, and Cousteau became our guide. And when he saw that pollution was taking its toll on the seas, Cousteau became our guide in how to protect the oceans as well."

    Long ago, people grew afraid when each day had fewer hours of sunshine than the day before. Over time, they realized that one day each year the sun started moving toward them again. In lyrical prose and cozy illustrations, this book explains what the winter solstice is and how it has been observed by various cultures throughout history. Many contemporary holiday traditions were borrowed from ancient solstice celebrations. Simple science activities, ideas for celebrating the day in school and at home, and a further-reading list are included. Illustrated by Jesse Reisch.

    He protected roots through harsh winters, so plants could be reborn in the spring. He trimmed flowers, spread soil, studied life cycles. And it was in this very place that George’s love of nature sprouted into something so much more—his future.

    Perfect for reading on winter days, the book features photos of real snow crystals in their beautiful diversity. Snowflake-catching instructions are also included.

    What is creating this revolting smell? The answer is gross: the river is full of poop. But the smell isn’t the worst problem. Every few years, cholera breaks out, and thousands of people die. Could there be a connection between the foul water and the deadly disease? One engineer dreams of making London a cleaner, healthier place. His name is Joseph Bazalgette. His grand plan to create a new sewer system to clean the river is an engineering marvel. And his sewers will save lives. Nothing stinky about that.

    Frogs are astonishing in their variety and crucial to ecosystems. Onomatopoeic text and stunning illustrations introduce young readers to these fascinating and important creatures, from Chile to Nepal to Australia.

    There are so many different kinds of birds—and those birds build so many different kinds of nests to keep their babies cozy. With playful, bouncy rhyme, Jennifer Ward explores nests large and small, silky and cottony, muddy and twiggy—and all the birds that call them home!

    Harkness would inherit an expedition from her explorer husband: the hunt for a panda.  She knew that bringing back a panda would be hard. Impossible, even.  But she intended to try.So she went to China, where she found a guide, built traps, gathered supplies, and had explorers' clothes made—unheard of for a woman in those days.  Then she set out up the Yangtze River and into the wilderness.  What she discovered would awe America: an adorable baby panda she named Su Lin, which means "a little bit of something very cute."With breathtaking illustrations from Caldecott Honor artist Melissa Sweet, this little-known true story shares the tale of an adventurous woman who was bold and brave—and the unforgettable journey that helped shape American attitudes toward wildlife.

    But Evelyn crawled in dirt and collected glow worms in jars. When girls grew up they were expected to marry and look after children. But Evelyn took charge of the London Zoo insect house, filling it with crawling and fluttering specimens and breathing life back into the dusty exhibits. In the early 1920s, women were expected to stay home, but Evelyn embarked on eight solo expeditions to distant islands. She collected over 70,000 insect specimens, discovered new species, had tangles with sticky spider webs, and tumbled from a cliff. Inspire children to believe in their dreams and blaze their own trail with the story of Evelyn's amazing life!

    A lively and inspiring poem weaves together facts about water and the need for water conservation.

    She knew how many miles it was to the moon (and how many back). She loved studying algebra and geometry and calculus and using math to solve problems in the outside world.Soon math led her to MIT and then to helping NASA put a man on the moon! She handwrote code that would allow the spacecraft’s computer to solve any problems it might encounter. Apollo 8. Apollo 9. Apollo 10. Apollo 11. Without her code, none of those missions could have been completed.Dean Robbins and Lucy Knisley deliver a lovely portrayal of a pioneer in her field who never stopped reaching for the stars.

    Mesmer’s mysterious powers in a whimsical look at a true moment in history.The day Ben Franklin first set foot in Paris, France, he found the city all abuzz. Everyone was talking about something new. Remarkable. Thrilling. Strange. Something called Science!But soon the straightforward American inventor Benjamin Franklin is upstaged by a compelling and enigmatic figure: Dr. Mesmer. In elaborately staged shows, Mesmer, wearing a fancy coat of purple silk and carrying an iron wand, convinces the people of Paris that he controls a magic force that can make water taste like a hundred different things, cure illness, and control thoughts! But Ben Franklin is not convinced. Will his practical approach of observing, hypothesizing, and testing get to the bottom of the mysterious Mesmer’s tricks? A rip-roaring, lavishly illustrated peek into a fascinating moment in history shows the development and practice of the scientific method—and reveals the amazing power of the human mind.

    Yum!The best part of a young child’s day is often opening a lunchbox and diving in. But how did all that delicious food get there? Who made the bread for the sandwich? What about the cheese inside? Who plucked the fruit? And where did the chocolate in that cookie get its start? From planting wheat to mixing flour into dough, climbing trees to machine-squeezing fruit, picking cocoa pods to stirring a vat of melted bliss, here is a clear, engaging look at the steps involved in producing some common foods. Healthy tips and a peek at basic food groups complete the menu.

    Your teeth are sharp. Your front paws are paddles, your back paws are rudders, and you can swim for miles.Your home has always been the sea and the ice.A sea bear, far north in the Arctic, hunts and naps and raises her young. She moves with the ice, swimming, running, stalking seals, resting. She follows the rhythm of the sea and the seasons.But what happens when those rhythms change? What happens when there is no ice?Lindsay Moore shares the story of one polar bear’s journey for survival in this stunning picture book. Imagine.