See how Greek soldiers fought in battle, discover who the heroes were, and learn about the culture and festivals celebrated throughout this relevant era.For over 25 years, DK's "Eyewitness" books have been the most trusted nonfiction series in classrooms, libraries, and homes around the world. In summer 2014 this award-winning series will get a fresh new look both inside and out. The introduction of paperback editions, eye-catching jackets, and updated interiors ensure that the "Eyewitness" series will continue to be relevant in the ever-changing world of education and remain the go-to source for homework help, research projects, reluctant readers, ESL students, and, as always, to satisfy the minds of curious kids.Supports the Common Core State Standards."

    Discover why the sands of Hawaii are black, how volcanoes affect the ozone layer, what makes magma explode, what a pyrolcastic flow is, and much, much more.

    This book tells about the fight to be free and independent.

    Learn who devised the terrifying Jolly Roger, how a surprisingly disciplined life was maintained aboard pirate ships, and what cunning ruses pirates used to lure merchants to their doom.

    Discover how armor was made, how men became knights, and what life in a medieval castle was like. "Great for reluctant readers."--School Library Journal.

    Superb, full-color photographs offer a unique and revealing "eyewitness" view of this rich culture. See a necklace made of bear claws, a model of a Blackfeet teepee, a false face made from cornhusks, how fish were trapped in a basket, and a Cheyenne feathered war bonnet. Learn about the kachina ceremony, why love dolls were important, how turtle shells made music, what's stored inside a parfleche, and how pemmican was made. Discover the meanings of carvings on a Haida totem pole, what's inside an Iroquois longhouse, what medicine men carried in their medical kits, how a bow drill works, and much, much more.

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    Ross worked as a seamstress and was eager to contribute to the cause, making tents and repairing uniforms when the colonies declared war. By 1779 she was filling cartridges for the Continental Army. Did she sew the first flag? That’s up for debate, but Who Was Betsy Ross? tells the story of a fierce patriot who certainly helped create the flag of a new nation.

    Unwrap hair-raising facts about natural and man-made mummies! Here is a look at how bodies were prepared, why ancient cultures made mummies, and how bog and ice mummies were preserved by freak climatic conditions. "A great collection of mummy information and specimens."—School Library Journal.

    This closeup look at the evolution and behavior of horses, zebras, ponies, mules, and more examines their importance to humans throughout history, and includes photos of all major domestic breeds.

    The beauty and importance of minerals, metals, crystals, fossils, and gemstones are shown in page after page of vivid photos.

    Sophia is horrified by the event and resolves to do all she can to help the American cause. Recruited as a spy, she becomes a maid in the home of General Clinton, the supreme commander of the British forces in America. Through her work she becomes aware that someone in the American army might be switching sides, and she uncovers a plot that will grievously damage the Americans if it succeeds. But the identity of the would-be traitor is so shocking that no one believes her, and so Sophia decides to stop the treacherous plot herself, at great personal peril: She’s young, she’s a girl, and she’s running out of time. And if she fails, she’s facing an execution of her own.Master storyteller Avi shows exactly how personal politics can be in this “nail-biting thriller” (Publishers Weekly) that is rich in historical detail and rife with action.

    Learn how space probes photograph planets, what causes a meteor shower, what makes Mars red, why the Sun shines, where the Moon came from, how the first telescopes worked, the stages in the life of a star, and more.

    From the splendor of the pharaoh's court to the everyday life of ordinary people, the great civilization of the Nile valley is revealed in page after page of dramatic photos of the objects they left behind: human and animal mummies, reed brushes, children's pull-toys, and more. "Stunning."--School Library Journal.

    This factual gem that's written with Jean Fritz's humorous touch chronicles the hot summer of 1787 where fifty-five delegates from thirteen states huddled together in the strictest secrecy in Philadelphia to draw up the constitution of the United States!