Take a look behind the walls of these fascinating fortresses and learn how they were built to house hundreds of people and animals; how a young boy rose from lowly page to noble knight; and what life was like for the castle residents.

    He saw the whole, where others saw only parts. And he noticed details others failed to see. Through stunning illustrations and lyrical prose, this picture book presents the life and accomplishments of Ernest Everett Just, an African American biologist who made important discoveries about the cell in the 1930s. Through his careful observations and hard work, Ernest opened up the wonder of the universe to all of us, through a tiny egg cell.

    Beautiful spotted coats conceal these elusive cats in their rocky, high-altitude habitat—a place where temperatures are often cold enough to freeze human tears. A thick, long tail for balance helps snow leopards spring at their prey from great distances—prey that is often three times its own size. Slinking along the Mongolian mountain ridges, the snow leopards are invisible—and almost impossible to study. But that doesn’t deter scientist Tom McCarthy, Conservation Director of the Seattle-based Snow Leopard Trust, or his many colleagues from dedicating their lives’ work to the study and protection of this seldom-seen creature. And it doesn’t stop Sy Montgomery and Nic Bishop from packing their bags in order to join Tom on a trek to Mongolia, where they hope to learn more about this magical cat, a cat who doesn’t give up its secrets easily. It will take endurance and persistence to climb the dusty mountain trails, hope of a snow leopard sighting rising and falling with each new summit. It will take practice and experience to lay humane leghold snares, collect scat samples, and set up motion-triggered cameras. It will take patience, focus—and yes, love—to dedicate a lifetime learning more about this little-understood creature. But that’s the only way the Snow Leopard Trust can protect their charges, before the snow leopard truly becomes nothing but a ghost of the mountain. With a dazzling, as-it-happens narrative and spectacular photographs, Sy Montgomery and Nic Bishop bring Mongolia up close for readers everywhere.

    Despite his intelligence--and his mother's scoldings--he was a poor student, preferring to be outdoors with his beloved plants and bugs. As he grew up, Karl's love of nature led him to take on a seemingly impossible task: to give a scientific name to every living thing on earth. The result was the Linnaean system--the basis for the classification system used by biologists around the world today. Backyard sciences are brought to life in beautiful color.Back matter includes more information about Linnaeus and scientific classification, a classification chart, a time line, source notes, resources for young readers, and a bibliography.*it's a tomato!A handsome introductory book on Linnaeus and his work -- Booklist, starred review A good introduction to a man in a class by himself -- Kirkus ReviewsLends significant humanity to the naturalist -- Publisher's WeeklyThe biographical approach to a knotty scientific subject makes this a valuable addition to STEM and biography collections -- School Library Journal

    From Alabama's Yellowhammer to Wyoming's Western Meadowlark, each bird is a winner—and each bird loves to show off the state it calls home. Hudson Talbott has created an inspired introduction to states and their birds. His vibrant, detailed illustrations infuse the birds' interactions with energy and humor, making this a great way to spark kids' interest in United States history, geography, and, of course, wildlife!

    The camera stops the action and magnifies it so that all the amazing states of water can be observed - water as ice, rainbow, stream, frost, dew. Readers can examine a drop of water as it falls from a faucet, see a drop of water as it splashes on a hard surface, count the points of an actual snowflake, and contemplate how drops of water form clouds.

    Unravel the remarkable mysteries of the ancient peoples who built great palaces and pyramids, and developed an accurate calendar and a knowledge of astronomy without the benefit of telescopes or written language.

    Water can be a Thirst quencher Kid drencher Cloud fluffer Fire snuffer Find out about the many roles water plays in this poetic exploration of water throughout the year.

    King Arthur was a good ruler, but now he needs a good ruler. What would you do if the neighboring kingdom were threatening war? Naturally, you'd call your strongest and bravest knights together to come up with a solution. But when your conference table causes more problems than the threat of your enemy, you need expert help. Enter Sir Cumference, his wife Lady Di of Ameter, and their son Radius. With the help of the carpenter, Geo of Metry, this sharp-minded team designs the perfect table conducive to discussing the perfect plan for peace. The first in Sir Cumference series, SIR CUMFERENCE AND THE FIRST ROUND TABLE makes math fun and accessible for everyone.

    . . We live in all kinds of places. In all kinds of homes. In all kinds of families. Each of us is different. But all of us are amazing. And, together, we share one beautiful planet. This masterful and moving picture book is a visually comprehensive guide to the earth, imbued with warmth and humor. • Ideal for children ages 3 to 5 years old• Resonates year-round as a go-to gift for birthdays, holidays, and more• A great pick for teachers looking for a crowd-pleasing picture book about the world for little students• Perfect for parents, grandparents, and caregivers• Add it to the shelf with books like The Travel Book by Lonely Planet Kids, Atlas of Adventures by Rachel Williams, and If You Lived Here: Houses of the World by Giles Laroche.

    Graeme Base takes the reader on a journey of discovery, from the plains of Africa and the jungles of the Amazon to the woodlands of North America and the deserts of the Australian outback.

    Explore Florida's river-laced Everglades, travel down the white water rapids of the Grand Canyon, trek across the deserts of Death Valley and scale the soaring summits of the Rocky Mountains with this book that brings you up close to nature's greatest adventures. Packed with maps and fascinating facts about the flora and fauna unique to each park, this fully-illustrated coast-to-coast journey documents the nation’s most magnificent and sacred places—and shows why they should be preserved for future generations to enjoy. With maps and information about flora and fauna found in each of the 21 icon parks portrayed, this is a fantastic celebration of the great outdoors. Parks include: Acadia, Badlands, Big Bend, Biscayne, Bryce Canyon, Channel Islands, Death Valley, Denali, Everglades, Glacier, Glacier Bay, Grand Canyon, Great Smoky, Mountains, Hawaii volcanoes, Isle Royal, Mesa Verde, Olympic, Sequoia and Kings Canyon, Virgin Islands, Yellowstone and Yosemite.

    From the beauty of snow blanketing the forest and falling on animals’ fur and feathers to the fascinating winter water cycle, this nonfiction picture book celebrates snowfall and the amazing science behind it.

    Their creations are some of the most enduring (the windshield wiper) and best loved (the chocolate chip cookie). What inspired these women, and just how did they turn their ideas into realities?Features women inventors Ruth Wakefield, Mary Anderson, Stephanie Kwolek, Bette Nesmith Graham, Patsy O. Sherman, Ann Moore, Grace Murray Hopper, Margaret E. Knight, Jeanne Lee Crews, and Valerie L. Thomas, as well as young inventors ten-year-old Becky Schroeder and eleven-year-old Alexia Abernathy. Illustrated in vibrant collage by Caldecott Honor artist Melissa Sweet.