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.

    Just don’t get too close—they could chomp you in two!

    A full-color chapter book biography that shows how a self-taught scientist was the first to observe the microbial life in and around us. By building his own microscope, Antony van Leeuwenhoek advanced humanity's understanding of our oft-invisible world around us.

    Discover their story, and that of the unknown soldiers they honor, through resonant words and illustrations. Keeping vigil at the Tomb of the Unknown Soldier, in Arlington National Cemetery, are the sentinel guards, whose every step, every turn, honors and remembers America’s fallen. They protect fellow soldiers who have paid the ultimate sacrifice, making sure they are never alone. To stand there—with absolute precision, in every type of weather, at every moment of the day, one in a line uninterrupted since midnight July 2, 1937—is the ultimate privilege and the most difficult post to earn in the army. Everything these men and women do is in service to the Unknowns. Their standard is perfection. Exactly how the unnamed men came to be entombed at Arlington, and exactly how their fellow soldiers have come to keep vigil over them, is a sobering and powerful tale, told by Jeff Gottesfeld and luminously illustrated by Matt Tavares—a tale that honors the soldiers who honor the fallen.

    

    Filled with illustrations of some of the most adorable babies in the kingdom, this awww-inspiring book looks at the traits that all baby mammals share and proves that, even though they're born in the wild, they're not so very different from us, after all!

    So they decided they wouldn't just rebuild the same old thing; this time, they would build a town that could not only survive another storm, but one that was built in an environmentally sustainable way. Told from the point of view of a child whose family rebuilt after the storm, this companion to Energy Island is the inspiring story of the difference one community can make--and it includes plenty of rebuilding scenes and details for construction lovers, too!

    As a young navy pilot, Alan wished he could paint the view from the cockpit. So he took an art class to learn patterns and forms. But no class could prepare him for the beauty of the lunar surface some 240,000 miles from Earth. In 1969, Alan became the fourth man and first artist on the moon. He took dozens of pictures, but none compared to what he saw through his artistic eyes. When he returned to Earth, he began to paint what he saw. Alan's paintings allowed humanity to experience what it truly felt like to walk on the moon. Journalist and storyteller Dean Robbins's tale of this extraordinary astronaut is masterful, and artist Sean Rubin's illustrations are whimsical and unexpected. With back matter that includes photos of the NASA mission, images of Alan's paintings, and a timeline of lunar space travel, this is one adventure readers won't want to miss!

    Its coils took a walk…and so did Richard’s imagination. He knew right away that he had stumbled onto something marvelous. With the help of his wife, Betty, Richard took this ordinary spring and turned it into a plaything. But it wasn’t just any old trinket—it was a Slinky, and it would become one of the most popular toys in American history.

    Can you imagine that many of anything?The playful illustrations from New York Times–bestselling artist Isabel Greenberg and the friendly, straightforward voice of author Seth Fishman illuminate some of the biggest numbers in the universe—a hundred billion trillion stars—and the smallest—one unique and special YOU. Here is a book for story time, for science time, for math time, for bedtime, and all the times in between.Perfect for curious children, classrooms eager for STEM content, and readers who have devoured Ada Twist, Scientist and How Much Is a Million?

    Back in the 1830s, who was a young blacksmith from Vermont, about to make his mark on American history? John Deere, that’s who!Who moved to Illinois, where farmers were struggling to plow through the thick, rich soil they called gumbo? Who tinkered and and tweaked and tested until he invented a steel plow that sliced into the prairie easy as you please?Long before the first tractor, who changed farming forever? John Deere, that’s who!Beautiful illustrations—including spectacular landscapes—reflect the time period and bring John Deere's remarkable story to life.

    Using the insights of great mathematicians and endlessly observing the sky, he succeeded in confirming two things that altered human life forever: that there are more galaxies than our own, and that the universe is always expanding. Hubble’s message to us is to find peace in the vastness of the mystery surrounding us, and to be curious. “We do now know why we are born into the world,” he said, “but we can try to find out what sort of world it is.”

    But there was a time when people hunted the otters almost to extinction. Without sea otters to eat them, an army of hungry sea urchins grew and destroyed entire kelp forests. Fish and other animals that depended on the kelp were lost, too. But when people protected the sea otters with new laws, their numbers began to recover, and so did the kelp forests. Susannah Buhrman-Deever offers a beautifully written account of a trophic cascade, which happens when the removal of a single element affects an entire habitat. Asides that dig deeper are woven throughout Matthew Trueman’s dynamic illustrations, starring a raft of charismatic sea otters. Back matter includes more information about sea otters and kelp forests, including their importance and current status, the effects of the international fur trade on indigenous peoples, and a list of books and websites for readers who wish to continue to explore.

    / 'Cause whether his or hers amoeba, / They too feel like you and meba.What if a boring lesson about the food chain becomes a sing-along about predators and prey? A twinkle-twinkle little star transforms into a twinkle-less, sunshine-eating-and rhyming Black Hole? What if amoebas, combustion, metamorphosis, viruses, the creation of the universe are all irresistible, laugh-out-loud poetry? Well, you're thinking in science verse, that's what. And if you can't stop the rhymes ... the atomic joke is on you. Only the amazing talents of Jon Scieszka and Lane Smith, the team who created Math Curse, could make science so much fun.

    The final spread will open up into a gatefold showing a photograph of the full Titanosaur skeleton on display at the museum. Chock-full of back matter like a glossary and extra information and photographs from the dig, and an inside jacket poster of the Titanosaur, kids of all ages will devour this book.