America's most celebrated astrophysicist invites young readers to explore the mysteries of the universe.

"A basic exploration of the appearance, behavior, and habitat of tortoises, the slow-moving shelled reptiles. Also included is a retelling of Aesop's famous fable about the tortoise and the hare"--

"In January in the Scottish Highlands, a mountain hare is camouflaged from predators in its white winter coat, while in New Guinea, a bright-green tree python guards her eggs. Come March, a warm Arctic spring lures polar bears out from their den, while in Australia, newly hatched crocodiles go for their first swim inside their mother's jaws. When autumn comes to the north, monarch butterflies start migrating south, just as bar-tailed godwits set off...

"Witness the power of our restless planet to both create and destroy. Watch red-hot lava flow from an erupting volcano, see how earthquakes create tsunamis, and meet scientists past and present who have helped us understand our turbulent world."--

"Step into the world of ancient Rome and meet its emperors, gods, soldiers, and gladiators. Who were Rome's most famous emperors? What was everyday life like for a soldier in the Roman army? How did the citizens of ancient Rome live? Did gladiators really fight to the death in the mighty Colosseum? Find out the answers to all these questions, and many more, in Eyewitness Ancient Rome. Photographs of real artefacts and detailed illustrations will help...

Presents the Milky Way galaxy and explores local planets and moons, other galaxies, and the worlds around distant stars.

New Look! Relaunched with new jackets and 8 pages of new text! A detailed look at life in Egypt--from the pharaoh and his courtiers, through the mystical rites of the priests, to the world of the workers in the fields. Featuring stunning items from the tomb of Tutankhamun and jewelry from the royal palaces, Eyewitness Ancient Egypt shows how Egyptian palaces were constructed and how Egyptian nobles lived. Find out how they prepared for the afterlife...

"What if a lobster and a crab had a fight? Who do you think would win? Learn . . . facts to compare and contrast these two . . . sea creatures! . . . Readers will learn about each animal's anatomy, behavior, and more. Then compare and contrast the battling pair before finally discovering the winner!"--Provided by publisher.

Mr. Geo the geography teacher explores the state of California, where he watches the taping of a television show in Los Angeles, visits state parks and historic landmarks, and reaches the Pacific Ocean.