This hands-on content-rich program enables you to lead your students through explorations of specific concepts within Life, Earth, and Physical Science.

本套书是根据美国《国家科学教育标准》为中学生编写的科学教材,不仅内容丰富,而且在引领学生探究、启迪学生心智方面也有独到之处。本册为从细菌到植物。

The uplifting, adventure-filled memoir of one groundbreaking scientist’s quest to develop new ways to fight illness and disease through the healing powers of plants. “A fascinating and deeply personal journey.” ­—Amy Stewart, author of Wicked Plants and The Drunken Botanist Traveling by canoe, ATV, mule, airboat, and on foot, Dr. Cassandra Quave has conducted field research everywhere from the flooded forests of the remote Amazon to the isolated mountaintops in Albania and Kosovo—all in search of natural compounds, long-known to traditional healers, that could help save us all from the looming crisis of untreatable superbugs. Dr. Quave is a leading medical ethnobotanist—someone who identifies and studies plants that may be able to treat antimicrobial resistance and other threatening illnesses—helping to provide clues for the next generation of advanced medicines. And as a person born with multiple congenital defects of her skeletal system, she's done it all with just one leg. In The Plant Hunter, Dr. Quave weaves together science, botany, and memoir to tell us the extraordinary story of her own journey.

In this exciting adventure mixed with amazing scientific study, a young, exuberant explorer and geoscientist journeys deep into the Amazon—where rivers boil and legends come to life. When Andrés Ruzo was just a small boy in Peru, his grandfather told him the story of a mysterious legend: There is a river, deep in the Amazon, which boils as if a fire burns below it. Twelve years later, Ruzo—now a geoscientist—hears his aunt mention that she herself had visited this strange river. Determined to discover if the boiling river is real, Ruzo sets out on a journey deep into the Amazon. What he finds astounds him: In this long, wide, and winding river, the waters run so hot that locals brew tea in them; small animals that fall in are instantly cooked. As he studies the river, Ruzo faces challenges more complex than he had ever imaged. The Boiling River follows this young explorer as he navigates a tangle of competing interests—local shamans, illegal cattle farmers and loggers, and oil companies. This true account reads like a modern-day adventure, complete with extraordinary characters, captivating plot twists, and jaw-dropping details—including stunning photographs and a never-before-published account about this incredible natural wonder. Ultimately, though, The Boiling River is about a man trying to understand the moral obligation that comes with scientific discovery —to protect a sacred site from misuse, neglect, and even from his own discovery.