Over 7,000 years ago Native Americans settled on the Nashua River, a beautiful and leafy valley. But the industrialization of nearby areas would lead to the deterioration of natural habitats. Each double spread examines brief periods of time when the river and surrounding areas teemed with wildlife. Lynne Cherry’s contrasting illustrations of the lush valley and the eventual polluted river deliver an astonishing look at our dramatic need for conservation efforts. This pictorial history of the river, edging towards a hopeful scene of modern-day descendants of both Native Americans and European settlers who come together to combat pollution and restore the beauty of the river, is an intelligent tale that shows young readers how they can do their part in taking care of the world around them, one river at a time.

    Vera Rubin was one of the astronomers who discovered and named dark matter, the thing that keeps the universe hanging together. Throughout her career she was never taken seriously as a scientist because she was one of the only female astronomers at that time, but she didn’t let that stop her. She made groundbreaking and incredibly significant discoveries that scientists have only recently been able to really appreciate—and she changed the way that we look at the universe.

    This book traces their first year together, including their adorable playful ways and the unique "language" that they have developed.

    When other elephants moved in and developed close friendships, only Tarra remained independent? until the day she met a stray mixed-breed dog named Bella.It was love at first sight as this unlikely duo became inseparable. They ate together, slept together, and even understood each other's language. And when Bella suffered a severe spinal injury, Tarra stayed by her side and was there for her until Bella regained her health.Brilliant color photographs of Tarra and Bella at home in the Elephant Sanctuary deftly illustrate this inspiring story of companionship, and an informative note about the Sanctuary provides a great resource for parents and teachers.

    After Charles Darwin discovered the frog in 1834, other researchers found that one of his specimens was packed full of tadpoles. Was the frog a cannibal, or perhaps a rare species that gave birth to live young instead of laying eggs? No. He was a male, holding the tadpoles safe in his vocal sac while they morphed into froglets. Andthe surprises didn't stop there. Author and frog scientist Marty Crump mines her firsthand experiences studying Darwin's frog to tell the fascinating story for young readers. Award-winning illustrators Steve Jenkins and Edel Rodriguez lend their art to a mix of beautiful photographs. Young readers will be enthralled by this story of real science, full of strange surprises.

    Pearl breaks the big we-need-a-sandcastle problem into smaller steps, then uses conditionals, loops, and other basic coding concepts to tell Pascal exactly what to do. But building a sandcastle isn’t as easy as it sounds when surfboards, mischievous dogs, and coding mishaps get in the way! Just when it looks like the sandcastle might never work, Pearl uses her coding skills to save the day and create something even better: a gorgeous sandcastle kingdom!

    New York City in the 1860s was a mess: crowded, disgusting, filled with garbage. You see, way back in 1860, there were no subways, just cobblestone streets. That is, until Alfred Ely Beach had the idea for a fan-powered train that would travel underground. On February 26, 1870, after fifty-eight days of drilling and painting and plastering, Beach unveiled his masterpiece—and throngs of visitors took turns swooshing down the track. The Secret Subway will wow readers, just as Beach’s underground train wowed riders over a century ago.

    She wasn't afraid of the bears, coyotes, and wildcats. But Hallie was afraid of fire and understood the threat it posed to the forests, wildlife, and people. And more than anything, she wanted to devote her life to protecting her beloved outdoors; she decided she would work for the US Forest Service. But in the 1880s the Forest Service didn't hire women, thinking they couldn't handle the physical challenges of the work or the isolation. But the Forest Service didn't know Hallie or how determined she could be. This picture-book biography tells the story of Hallie Morse Daggett, the first woman "fire guard" hired by the US Forest Service, whose hard work and dedication led the way for other women to join the Forest Service.

    Dual-layered text introduces the life cycle of the horseshoe crab, with a focus on the annual mass-spawning event at Delaware Bay.

    While most children's books in the 18th century contained lessons and rules, John Newbery imagined them overflowing with entertaining stories, science, and games. He believed that every book should be made for the reader's enjoyment. Newbery—for whom the prestigious Newbery Medal is named—became a celebrated author and publisher, changing the world of children's books forever. This book about his life and legacy is as full of energy and delight as any young reader could wish.

    Stunning, realistic illustrations celebrate the beauty of these mysterious creatures as readers learn important facts through an engaging and fascinating story. The book also includes back matter with more in-depth information, a glossary, and further resources.

    If you've ever wondered about alien encounters, deadly creatures, and real-life monsters, then you'll love this compendium of all things scary! With interesting facts, side panels, and scariness ratings, children will enjoy reading about all the things that keep them up at night and learning the truth behind their favorite fears. And, best of all, they're sure to find new things to scream about!

    Alone and lonely for much of her childhood, Eleanor found solace in books and in the life of her lively and independent mind. Her intellectual gifts and compassionate heart won her the admiration of many friends—and the love of her future husband, Franklin Delano Roosevelt. While other young women of her class were spending time at dances and parties, Eleanor devoted her energies to teaching children in New York City's poorest neighborhoods. Later, she became the most socially and politically active—and controversial—First Lady America had ever seen. Ambassador, activist, and champion of civil rights, Eleanor Roosevelt changed the soul of America forever.In her eloquent prose, Doreen Rappaport captures the essence of Eleanor's character and the deep significance of her legacy. With beautiful paintings by Gary Kelley and selections from Eleanor's own writings, Eleanor's Big Words is an extraordinary tribute to an extraordinary American.

    Gradually reintroduced, they are thriving again in the West, much to the benefit of the ecosystem. This book will teach a new generation to appreciate the grace, dignity, and value of wolves as it promotes awareness of the environment’s delicate balance. Paired with gorgeous paintings by landscape artist Wendell Minor, Jean Craighead George’s engaging text will inspire people of all ages to care about the protection of endangered species.

    Helens, a volcano in southern Washington State. Minutes later, Mount St. Helens blew the top off its peak and exploded into the most devastating volcanic eruption in U.S. history.What caused the eruption? What was left when it ended? What did scientists learn in its aftermath?In this extraordinary photographic essay, Patricia Lauber details the Mount St. Helens eruption and the years following. Through this clear accurate account, readers of all ages will share the awe of the scientists who witnessed both the power of the volcano and the resiliency of life.