It had an illustration that captivated him–a diagram showing Earth’s interior as it would look if you cut into it with a large knife and removed about a quarter of its bulk. The idea of lots of startled cars and people falling off the edge of that sudden cliff (and 4,000 miles is a pretty long way to fall) was what grabbed him in the beginning, but gradually his attention turned to what the picture was trying to teach him: namely that Earth’s interior is made up of several different layers of materials, and at the very centre is a glowing sphere of iron and nickel, as hot as the Sun’s surface, according to the caption. And he very clearly remembers thinking: “How do they know that?”Bill’s storytelling skill makes the “How?” and, just as importantly, the “Who?” of scientific discovery entertaining and accessible for all ages. He covers the wonder and mystery of time and space, the frequently bizarre and often obsessive scientists and the methods they used, and the mind-boggling fact that, somehow, the universe exists and against all odds, life came to be on this wondrous planet we call home.

    As we dream with him, we are taken further and further into mathematical theory, where ideas eventually take flight, until everyone--from those who fumble over fractions to those who solve complex equations in their heads--winds up marveling at what numbers can do.Hans Magnus Enzensberger is a true polymath, the kind of superb intellectual who loves thinking and marshals all of his charm and wit to share his passions with the world. In The Number Devil, he brings together the surreal logic of Alice in Wonderland and the existential geometry of Flatland with the kind of math everyone would love, if only they had a number devil to teach them.

    This classic book covers the body's changing size and shape, hair, voice changes, perspiration, pimples, the reproductive organs, sexuality, puberty in girls and adds new sections on diet, exercise, and health. It also includes vital information on AIDS, STDs, and birth control appropriate for this age group, and an introduction for parents and educators. Responding to letters and new data about teenage concerns, some of the changes in this edition include:* new, more detailed discussions of penis size ("the subject of most letters I get," says Madaras) * new, more detailed discussions on eating right and exercise, steroid abuse, and weight training * more practical advice on hygienic products, shaving products, and treatment of acne * more reassuring stories from boys and men to help relieve the embarrassment and anxiety over erections, orgasms, masturbation, wet dreams, and health issues including injuries and testicular cancer * expanded resource section on sexuality, homosexuality, birth control, sexually transmitted diseases. Over 1,200,000 copies of Lynda Madaras books sold!

    “The writing is direct, devastating, with no rhetoric or exploitation. The truth is in what’s said and in what is left out.”—ALA Booklist (starred review)Marion Blumenthal Lazan’s unforgettable and acclaimed memoir recalls the devastating years that shaped her childhood. Following Hitler’s rise to power, the Blumenthal family—father, mother, Marion, and her brother, Albert—were trapped in Nazi Germany. They managed eventually to get to Holland, but soon thereafter it was occupied by the Nazis. For the next six and a half years the Blumenthals were forced to live in refugee, transit, and prison camps, including Westerbork in Holland and Bergen-Belsen in Germany, before finally making it to the United States. Their story is one of horror and hardship, but it is also a story of courage, hope, and the will to survive.Four Perfect Pebbles features forty archival photographs, including several new to this edition, an epilogue, a bibliography, a map, a reading group guide, an index, and a new afterword by the author. First published in 1996, the book was an ALA Notable Book, an ALA Quick Pick for Reluctant Readers, and IRA Young Adults’ Choice, and a Notable Trade Book in the Field of Social Studies, and the recipient of many other honors. “A harrowing and often moving account.”—School Library Journal

    They offer a unique glimpse into life on the American frontier, and tell the heartwarming, unforgettable story of a loving family.Little House in the Big WoodsMeet the Ingalls family—Laura, Ma, Pa, Mary, and baby Carrie, who all live in a cozy log cabin in the big woods of Wisconsin in the 1870s. Though many of their neighbors are wolves and panthers and bears, the woods feel like home, thanks to Ma’s homemade cheese and butter and the joyful sounds of Pa’s fiddle.Farmer BoyAs Laura Ingalls is growing up in a little house in Kansas, Almanzo Wilder lives on a big farm in New York. He and his brothers and sisters work hard from dawn to supper to help keep their family farm running. Almanzo wishes for just one thing—his very own horse—but he must prove that he is ready for such a big responsibility.Little House on the PrairieWhen Pa decides to sell the log house in the woods, the family packs up and moves from Wisconsin to Kansas, where Pa builds them their little house on the prairie! Living on the farm is different from living in the woods, but Laura and her family are kept busy and are happy with the promise of their new life on the prairie.On the Banks of Plum CreekThe Ingalls family lives in a sod house beside Plum Creek in Minnesota until Pa builds them a new house made of sawed lumber. The money for the lumber will come from their first wheat crop. But then, just before the wheat is ready to harvest, a strange glittering cloud fills the sky, blocking out the sun. Millions of grasshoppers cover the field and everything on the farm, and by the end of a week, there is no wheat crop left.By the Shores of Silver LakePa Ingalls heads west to the unsettled wilderness of the Dakota Territory. When Ma, Mary, Laura, Carrie, and baby Grace join him, they become the first settlers in the town of De Smet. Pa starts work on the first building of the brand new town, located on the shores of Silver Lake. The Long WinterThe first terrible storm comes to the barren prairie in October. Then it snows almost without stopping until April. With snow piled as high as the rooftops, it’s impossible for trains to deliver supplies, and the townspeople, including Laura and her family, are starving. Young Almanzo Wilder, who has settled in the town, risks his life to save the town.Little Town on the PrairieDe Smet is rejuvenated with the beginning of spring. But in addition to the parties, socials, and “literaries,” work must continue. Laura spends many hours sewing shirts to help Ma and Pa get enough money to send Mary to a college for the blind. But in the evenings, Laura makes time for a new caller, Almanzo Wilder.These Happy Golden YearsLaura must continue to earn money to keep Mary in her college for the blind, so she gets a job as a teacher. It’s not easy, and for the first time she’s living away from home. But it gets a little better every Friday, when Almanzo picks Laura up to take her back home for the weekend. Though Laura is still young, she and Almanzo are officially courting, and she knows that this is a time for new beginnings.The First Four YearsLaura Ingalls and Almanzo Wilder have just been married! They move to a small prairie homestead to start their lives together. But each year brings new challenges—storms, sickness, fire, and unpaid debts. These first four years call for courage, strength, and a great deal of determination. And through it all, Laura and Almanzo still have their love, which only grows when baby Rose arrives.

    But one night after Girl Scouts she trips and falls, severely injuring her two front teeth, and what follows is a long and frustrating journey with on-again, off-again braces, surgery, embarrassing headgear, and even a retainer with fake teeth attached. And on top of all that, there’s still more to deal with: a major earthquake, boy confusion, and friends who turn out to be not so friendly. This coming-of-age true story is sure to resonate with anyone who has ever been in middle school, and especially those who have ever had a bit of their own dental drama.

    Africa, China, Europe, the Americas—find out what happened all around the world in long-ago times. This first revised volume begins with the earliest nomads and ends with the last Roman emperor. Newly revised and updated, The Story of the World, Volume 1 includes maps, a new timeline, more illustrations, and additional parental aids. This read-aloud series is designed for parents to share with elementary-school children. Enjoy it together and introduce your child to the marvelous story of the world's civilizations.Each Story of the World volume provides a full year of history study when combined with the Activity Book, Audiobook, and Tests—each available separately to accompany each volume of The Story of the World Text Book. Volume 1 Grade Recommendation: Grades 1-5.

    Hendrik Willem van Loon's ability to convey history as a fascinating tale of adventure has endeared this book to countless readers. 280 drawings.

    35), do the perfect manicure (p. 82), or make your own lip gloss (p. 11).Feel like impressing your friends? Show them how you can make a crystal (p. 16), juggle one-handed (p. 33), or deal with a bully (p. 42).Bored and need something to do? Not anymore when you find out how to keep a secret diary (p. 88), make a scrapbook (p. 9), or put together a dance routine (p. 24).And tons of other neat-o things you need to know how to do!

    This book inspires girls with the stories of great women, from Elizabeth I to Serena Williams.

    Titanic 1912 (Dear America Series)

    The poem first appeared in 1872 in Lewis Carroll’s classic THROUGH THE LOOKING-GLASS AND WHAT ALICE FOUND THERE, and since then, its mysterious and lyrical lines have delighted readers of all ages. With great wit and imagination, illustrator Joel Stewart offers a singular vision of the world of "Jabberwocky" and all its memorable creatures.

    In every culture, in every age, in every place and, probably, in every heart, there is magic. This non-fiction short-form eBook features content which is adapted from the audiobook Harry Potter: A History of Magic – inspired by the British Library exhibition of the same name.How to become invisible, to make someone fall in love with you, to transform into another creature: these are all things that people have believed in, yearned for, or feared, throughout history. Spells and charms have captured the imagination for hundreds of years. Warding off evil is also something that has concerned people throughout history. From werewolves to all manner of snakes in the wizarding world, you’d learn how to face a number of strange and frightening forces in Defence Against the Dark Arts classes. This eBook short examines the colourful characters and curious incidents of the real history of magic, and how they relate to the Hogwarts lesson subjects of Charms and Defence Against the Dark Arts from the Harry Potter stories.

    Fannie dreamed that America could achieve its ideals of equality and justice for all, and she sacrificed her life to help that dream come true. Fannie became a union activist, helping to create St. Louis, Missouri, Local 67 of the United Garment Workers of America. She traveled the nation and eventually gave her life, calling for fair wages and decent working and living conditions for workers in both the garment and mining industries. Her accomplishments live on today. This book includes an index, glossary, a timeline of unions in the United States, and endnotes.

    Believe it or not, it's all true. Told in the voice of the young Mary, this novel explores the history and intrigue of the dramatic rule of Henry VIII, his outrageous affair with and marriage to the bewitching Anne Boleyn, and the consequences of that relationship for his firstborn daughter. Carolyn Meyer has written a compassionate historical novel about love and loss, jealousy and fear - and a girl's struggle with forces far beyond her control.