Nobody thought the Nazis could be defeated--until Uncle Victor told Peter how the children could fool the enemy. It was a dangerous plan. They had to slip past Nazi guards with nine million dollars in gold hidden on their sleds. It meant risking their country's treasure--and their lives. This classic story of how a group of children outwitted the Nazis and sent the treasure to America has captivated generations of readers. About the Author: The late Marie McSwigan wrote many novels for young readers, including All Aboard for Freedom. Originally published in 1942.

    In this charming and awe-inspiring story you'll meet Cloud, the black lab with a nose for rescue. She's the only dog certified to sniff out stranded dolphins. Cloud can sniff out a dolphin over a mile off the coast of the Florida Keys. She has even become friends with them, waiting on the dock for them to pop up and give her a kiss. This and two more amazing stories are so engaging, readers will never want to put the book down!National Geographic supports K-12 educators with ELA Common Core Resources.

    Grounded in the history of space travel and the planned future of space tourism, this guide book will leave young adventurers daydreaming about future intergalactic space vacations. Get ready to rock your rocketship!

    If you were the moon, what would you do? You'd spin like a twilight ballerina and play dodgeball with space rocks! And more.

    This book teaches you how to conduct examinations by explaining what digital forensics is, the methodologies used, key technical concepts and the tools needed to perform examinations. Details on digital forensics for computers, networks, cell phones, GPS, the cloud, and Internet are discussed. Readers will also learn how to collect evidence, document the scene, and recover deleted data. This is the only resource your students need to get a jump-start into digital forensics investigations.This book is organized into 11 chapters. After an introduction to the basics of digital forensics, the book proceeds with a discussion of key technical concepts. Succeeding chapters cover labs and tools; collecting evidence; Windows system artifacts; anti-forensics; Internet and email; network forensics; and mobile device forensics. The book concludes by outlining challenges and concerns associated with digital forensics. PowerPoint lecture slides are also available.This book will be a valuable resource for entry-level digital forensics professionals as well as those in complimentary fields including law enforcement, legal, and general information security.

    Dickinson has designed a superb introduction to astronomy that is clear, concise, beautifully illustrated and very user friendly no matter what the child's age.The book is divided into three sections. The first is a 10-step voyage from the Earth's vicinity to the distant reaches of the universe. Organized by increasing distance from the Earth, it touches on the Moon, Mars, Pluto, comets, the three stars of Alpha Centauri, the center of the Milky Way, the Large Magellanic Cloud, the Andromeda Galaxy, and vantage points at 10,000,000 light-years from Earth and 300,000,000 light-years from Earth.The second section, Alien Vistas, is a sequence of 10 close-up looks at some of the most interesting objects mentioned in the first section, including all the planets of the solar system, stars, black holes and quasars, and makes speculations about extraterrestrial life.The final section is a guide to viewing the night sky, which enables readers to go outside on any clear night of the year and identify celestial objects. There is a glossary with explanations of unfamiliar terms and for pronunciations.Exploring the Night Sky is a clearly written, well-illustrated introduction to astronomy for anyone interested in the universe around us.

    November 2015 is the 100th anniversary of Einstein’s discovery of the General Theory of Relativity.Levenson, head of MIT’s Science Writing Program, tells the captivating, unusual, and nearly-forgotten backstory behind Einstein’s invention of the Theory of Relativity, which completely changed the course of science forever. For over 50 years before Einstein developed his theory, the world’s top astronomers spent countless hours and energy searching for a planet, which came to be named Vulcan, that had to exist, it was thought, given Isaac Newton’s theories of gravity. Indeed, in the two centuries since Newton’s death, his theory had essentially become accepted as fact. It took Einstein’s genius to realize the mystery of the missing planet wasn’t a problem of measurements or math but of Newton’s theory of gravity itself. Einstein’s Theory of Relativity proved that Vulcan did not and could not exist, and that the decades-long search for it had merely been a quirk of operating under the wrong set of assumptions about the universe. Thomas Levenson tells this unique story, one of the strangest episodes in the history of science, with elegant simplicity, fast-paced drama, and lively characters sure to capture the attention of a wide group of readers.

    This colourful book explores the exciting worlds of mountains, jungles and deserts, their dramatic landscapes, the animals and plants that inhabit them and the people who live in the most beautiful and remote areas of the earth.