Dive below the surface and find out what happens under earth and under sea—from early submarines and deep-sea life to burrowing animals and man-made tunnels.

    Some things are facts--like the number of robots in this book. Other things are opinions--like which robot would make the best friend, or which robot dances best. And sometimes to tell the difference between a fact and an opinion, you need to wait to get more information--that's because facts can be proven true or false, and opinions are things you feel and believe--but that you can't prove.

    And once, born nearly a thousand years after the tree first took root, there was a girl named Julia, who was called Butterfly.When exploring her beloved forest, Butterfly wandered into a grove of ancient trees. One tree had broken branches and a big blue "X" on the side. It was going to be chopped down. Butterfly climbed up into the tree. A tree wouldn't be cut down if it had a person living in it. This is the story of Julia Butterfly Hill and Luna, the redwood tree she lived in for two years, never once coming down. That is, not until Luna's future was safe.

    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.

    Just as important, the story doesn’t gender people or body parts, so most parents and families will find that it leaves room for them to educate their child without having to erase their own experience.

    Everyone has heard of Albert Einstein-but what exactly did he do? How much do kids really know about Albert Einstein besides the funny hair and genius label? For instance, do they know that he was expelled from school as a kid? Finally, here's the story of Albert Einstein's life, told in a fun, engaging way that clearly explores the world he lived in and changed.

    As the years pass, she repeats an incredible journey across the world to the beautiful coral reefs. But one day she finds that plastic has invaded her beloved ocean. Could Turtle's journey be over forever?

    Follow Beauty's brave and inspiring story as she grows up in the wild, is rescued after being illegally shot, and receives a new beak specially engineered by a human team including a raptor biologist, engineer and dentist. Learn more about how bald eagles as a species came back from near extinction, and about nationwide efforts to conserve this American symbol.

    Is there enough time? You have 3 shirts and 2 pairs of pants. Can you make 1 good outfit? Then you start to wonder: Why does everything have to be such a problem? Why do 2 apples always have to be added to 5 oranges? Why do 4 kids always have to divide 12 marbles? Why can't you just keep 10 cookies without someone taking 3 away? Why? Because you're the victim of a Math Curse. That's why. But don't despair. This is one girl's story of how that curse can be broken.

    Without enough money for food, let alone school, William spent his days in the library ... and figured out how to bring electricity to his village. Persevering against the odds, William built a functioning windmill out of junkyard scraps, and thus became the local hero who harnessed the wind. Lyrically told and gloriously illustrated, this story will inspire many as it shows how—even in the worst of times—a great idea and a lot of hard work can still rock the world.

    In a three-generation family, the bag is transporter of objects and keeper of memories. And when Grandfather comes to the end of his life, the family finds a meaningful new way for the battered, but much-loved brown bag to continue its journey in the circle of life.

    First published to wide acclaim in 2002, this eye-opening book has since become a classic, promoting "world-mindedness" by imagining the world's population -- all 6.8 billion of us -- as a village of just 100 people. Now, If the World Were a Village has been newly revised with updated statistics, several new activities and completely new material on food security, energy and health. By exploring the lives of the 100 villagers, children will discover that life in other nations is often very different from their own. If the World Were a Village is part of CitizenKid: A collection of books that inform children about the world and inspire them to be better global citizens.

    It’s closer, it’s coming, it’s buzzing, it’s humming… A BEE! With zooming, vibrant verse by Kirsten Hall and buzzy, beautiful illustrations by Isabelle Arsenault, this celebration of the critically important honeybee is a honey-sweet treasure of a picture book.

    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.

    . .One night, her mother takes her to the ballet, and everything is changed. Anna finds a beauty inside herself that she cannot contain.So begins the journey of a girl who will one day grow up to be the most famous prima ballerina of all time, inspiring legions of dancers after her: the brave, the generous, the transcendently gifted Anna Pavlova.