But how do you count zero, a number that is best defined by what it's not?Can you see it?Can you hear it?Can you feel it?This important math concept is beautifully explored in a way that will inspire children to find zero everywhere--from the branches of a tree by day to the vast, starry sky by night.

    And a huge fold-out chart compares the dinos to each other, from the tiniest Microraptor to Argentinosaurus, the largest animal to ever walk the land.*An NPR Best Book of 2013*

    Kids are invited to find out where worms live, see how they move, and understand why gardeners consider them friends with the help of this humorous and informative look at an unappreciated — and fascinating — creature.

    A tiny leak could shoot pressurized water straight through the men like bullets! A single spark could cause their oxygen tanks to explode! No one had ever dived lower than a few hundred feet...and come back. But Otis and Will were determined to become the first people to see what the deep ocean looks like.This suspenseful story from acclaimed author Barb Rosenstock with mesmerizing watercolors by award-winning artist Katherine Roy will put you right in the middle of the spine-tingling, record-setting journey down, down into the deep.

    A Caldecott medalist and a Newbery Honor-winning poet celebrate the beauty and value of spirals.What makes the tiny snail shell so beautiful? Why does that shape occur in nature over and over againbut also celebrate the beauty and usefulness of this fascinating shape.

    They can be big, like a whale, tiny, like a shrimp, and even scary, like a shark.Even though sharks can be scary, we need them to keep the oceans healthy. Unfortunately, due to overfishing, many shark species are in danger of extinction, and that can cause big problems in the oceans and even on land.What would happen if this continued and sharks disappeared completely?Artist Lily Williams explores how the disappearance would affect other animals across the whole planet in this clever book about the importance of keeping sharks, and our oceans, healthy.

    From beloved author Dave Keane and acclaimed illustrator K.G. Campbell, a laugh-out-loud story of unexpected friendship!    When the spunky, loveable narrator receives a tortoise for her birthday, instead of the cuddly puppy she’s longed for her entire life, she’s more than a little disappointed.  But while her new lump of a pet isn’t what she dreamed of, it doesn’t take long—between tortoise-on-skateboard walks, sparkly shell makeovers, and a lemonade stand selling chances to hold a real life tortoise—for the little girl to change her mind—sort of.  But when her pet goes missing, all she wants is to be reunited with her new best friend.

    This book tells the story of Mrs. Obama’s garden, as well as the story of the White House grounds, the other gardens (including Eleanor Roosevelt’s Victory Garden in World War II) that came before, the White House children who have played there, and the teamwork, involving local children as well as the Obama family and White House staff, that led to the garden now flourishing on the South Lawn. This is a lighthearted, entertaining, and lavishly illustrated introduction to an inspiring and much-publicized project. Includes recipes.

    In rhyming poetic form and with luminous artwork, this book shows us the marvel of natural cooperation between plants, animals, and insects as they each play their part in the forest's cycle of life.

    A must-have for fans of Rosie Revere, Engineer and What Do You Do with an Idea? and anyone who loves to ask questions and learn about the world. Features a glossary and fun tide pool activity to do a home.In the companion to Cece Loves Science and Libby Loves Science, Vivi and her classmates take a field trip to the beach to study tide pools. With help from her teacher and a park ranger, Vivi and her friends make aquascopes, participate in a marine-inspired scavenger hunt, and learn about different species that call the ocean home.At the end of their trip, there’s one more surprise for Vivi! Full of fun facts about marine biology and conservation, Vivi Loves Science is a perfect pick for aspiring scientists, classrooms, and fans of Andrea Beaty’s Ada Twist, Scientist. Features a glossary and instructions on how to make your own aquascope and tide pool at home.

    It tells the true story of the Callery pear tree that stood at the base of the World Trade Center for 30 years and was almost destroyed, only to be pulled from the rubble, coaxed back to life, and eventually replanted as part of the 9/11 memorial.

    As the rain begins, a little fox seeks shelter. But then it builds and builds into to a torrential storm. Wash! Wham! Lash! Whirl! Bash! Swirl! Hiss! Slap! Slam! Both a visual feast and a joy to read aloud, this stunning picture book showcases the power and beauty of nature.

    From earmuffed crossing guards to sweater wearing dogs, from painters of flowers to planters of seeds, Happy Springtime! celebrates the burst of life following the thaw of winter.Boston Globe-Horn Book Award Honoree Kate McMullan's jubilant love-letter to this exciting time of year is the perfect book to bring in the season of birth and renewal, especially when accompanied by the riotous watercolor illustrations of Sujean Rim.

    Leveraging the natural and universal fascination that children have with animals, the book utilises hints and recognition to build a sense of anticipation on each page, that is resolved on the following page when the identity of the animal is discovered. Young readers are engaged in the process of deduction by drawing on visual prompts and clues such as where an animal may live, what the animal may look like and sounds the animal makes. The effect is that each page presents an engaging yet accessible mini mystery for the child to solve. Accordingly, the young reader's inevitable participation in the process of discovery is ensures the book's enjoyment.

    78% water, 100% delicious. A zombie chef who has sworn off eating brains salivates over this super powerful organ in this funny and fact-filled picture book. From learning about how the brain processes messages from our five senses, to learning why wrinkly human brains are so much more powerful than smooth mouse brains, this is an introduction to the organ that does it all.