He just wants to save on toothpaste. Betting he can make a gallon of his own for the same price as one tube from the store, Rufus develops a step-by-step production plan with help from his good friend Kate MacKinstrey. By the time he reaches the eighth grade, Rufus makes more than a gallon -- he makes a million! This fun, breezy story set in 1960s Cleveland, Ohio contains many real-life mathematical problems which the characters must solve to succeed in their budding business. Includes black-and-white illustrations by Jan Palmer.This 35th anniversary edition includes an exclusive author interview and reader's guide with book summary and discussion questions.

    What lives at the bottom of the sea? What does a shark really eat? How does a sea horse swim? In this book you'll find the answers and lots more about the fascinating things which live under the sea.

    Against the backdrop of Archimedes's life and culture, the author discusses the man's work, his discoveries and the knowledge later based upon it. The simple, often humorous, illustrations and diagrams greatly enhance the text. Ages 10 and up.

    The Holocaust was a genocide on a scale never before seen, with as many as twelve million people killed in Nazi death camps--six million of them Jews. Gail Herman traces the rise of Hitler and the Nazis, whose rabid anti-Semitism led first to humiliating anti-Jewish laws, then to ghettos all over Eastern Europe, and ultimately to the Final Solution. She presents just enough information for an elementary-school audience in a readable, well-researched book that covers one of the most horrible times in history.This entry in the New York Times best-selling series contains eighty carefully chosen illustrations and sixteen pages of black and white photographs suitable for young readers.

    The book proceeds chronologically, accompanied by a timeline to offer helpful historical context. Each artist's entry includes a concise biography, beautiful reproductions of major works, and lively texts that speak directly to young readers. Games, quizzes and other activities help readers learn about the significant contributions of each artist in a way that is both fun and inspiring. Additional information about museums, suggestions for further reading, and online resources will satisfy the most curious minds.

     Winner of the Golden Kite Award for Nonfiction   “Making extensive use of the actual words—culled from diaries, journals, memoirs, and letters—of boys who served in the Union and Confederate armies as fighting soldiers as well as drummers, buglers, and telegraphers, Murphy describes the beginnings of the Civil War and goes on to delineate the military role of the underage soldiers and their life in the camps and field bivouacs. Also included is a description of the boys' return home and the effects upon them of their wartime experiences…An excellent selection of more than 45 sepia-toned contemporary photographs augment the text of this informative, moving work.” —School Library Journal (starred review)   “This wrenching look at our nation’s bloodiest conflict through the eyes of its youthful participants serves up history both heartbreaking and enlightening.” —Publishers Weekly   “This well-researched and readable account provides fresh insight into the human cost of a pivotal event in United States history.” —The Horn Book (starred review)

    Using a flaming grease gun as a torch, they ventured deep underground, eventually coming to a huge cave, the walls of which were covered with life-size paintings of animals. Whole herds of horses! Deer with horns as big as tree branches! Giant bison! The boys were amazed by their discovery. They'd stumbled upon the world's finest examples of prehistoric painting! Perfect for classroom use, this Step 4 Step into Reading book is realistically illustrated by award-winning artist Bryn Barnard.

    As the long days pass, the searchers grow desperate, but Sarah's father's trust in God holds firm.

    National Geographic Children’s Books will publish this fully revised and updated edition of Our Country’s Presidents in time for the Inauguration of our 44th head of state—the first Presidents reference book on the market after the election.This president will follow in the footsteps of 43 predecessors who have assumed America’s greatest responsibility: these men have faithfully executed their duties—they have signed treaties, addressed Congress, brokered peace, and waged war. Each has left his own indelible mark on the history of the United States and on the lives of the American people.Find out why George Washington gave up his life as a Virginia planter to lead the nation; why John Taylor was deemed "His Accidency"; walk with the presidents through wars, depressions, civil rights movements, and the space race; romp with the Garfield children in a White House pillow fight; and mourn with a nation for John F. Kennedy.This timely update will offer fascinating and comprehensive profiles of all the presidents, timelines of their administrations, historic images, and features on important aspects of their terms. A fresh cover design and informative insight about our new leader will make this volume stand apart from all other contenders, and confirm its place as the definitive family reference guide to the fascinating lives of our leaders past and present.

    Explore the incredible diversity of life in the sea--from the haunting, hour-long songs of humpback whales to the fantastic coral colonies that spawn all their young in a single night.

    Encounters with tigers, wild hogs, and deadly snakes were as much a part of his life as tending the rice fields while on the back of his pet water buffalo, Tank.Perfect for classrooms, as well as fans of Linda Sue Park and Thanhha Lai, these fifteen tales will transport readers into a world of lush beauty and terrible danger—and a way of life that is gone forever.

    Their teacher, Ms. Ibis, is taking all the little crocodiles (and their toothbrushes) on a class trip to the Royal Museum. But who's that trying to steal the Sacred Eye of Isis? Can it be the Bad Guy? Can Bill and Pete save the day once more? Full color.

    World-changing events unfold before your eyes in this amazing tale of invention! Dramatic illustrations and fast-paced text provide a "you-are-there" experience. With extensive back matter, including a bibliography, extended reading list, glossary, and further Internet sources, young readers will gobble up this action-packed comic book about one of history's greatest discoveries.

    And just as compelling is the way the book is structured—hopscotching from country to country not by location but by type of attraction. For example, visit the site of the Tunguska event in Siberia, where a meteor slammed into the earth in 1908—and then skip over to the Yucatan, ground zero for the ancient meteor crash that caused the mass extinction of dinosaurs. Then, while in Mexico, tour the fantastical Naica caves, home to crystals ten times larger than the average person—then, turn the page to Vietnam to a cave so vast you  could fly a 747 through it. Illustrated in gorgeous and appropriately evocative full-color art, this book is a passport to a world of hidden possibilities.

    Travel a few miles in any direction, and you'll encounter an amazing story that helps explain all the multitude of ways our country came to be." -- Lynne CheneyLynne Cheney and Robin Preiss Glasser, creators of the bestselling America: A Patriotic Primer and A is for Abigail: An Almanac of Amazing American Women, take you on an unforgettable tour of America -- from the Everglades of Florida to the grasslands of Kentucky to the Sierra Mountains of California.Listening to her grandchildren's enthusiastic account of all they saw and did on a family road trip inspired Lynne Cheney to collaborate with Robin Preiss Glasser and create Our 50 States -- the greatest family vacation imaginable. Pack your bags and celebrate our diverse heritage state by state and sea to shining sea in this treasure trove of America's people, places, and history.A scholar of American history, Mrs. Cheney has drawn on a lifetime of study and travel for Our 50 States. Robin Preiss Glasser has brought her inimitable wit and exuberance to every illustration. Together they have created a joyful book that reminds us how fortunate we are to call America our home.