Describes the history, geography, ecology, people, economy, cities, and sights of the state of Colorado, and includes ideas for classroom assignments.

Become an eyewitness to how reptiles sense the world, move and use camouflage in this picture-led reference guide that will take you on a visual tour of these scaly creatures. Children will be mesmerized by the many different types of reptile species, from small pets to large crocodiles.

Provides an overview of the origin and evolution of life on earth and of what has been learned from the study of evolution.

Presents an introductory look at space, including information on the solar system, the history of space exploration, and space in the future.

Simple language and humorous illustrations show how forces make things move, prevent them from starting to move, and stop them from moving.

"A basic exploration of the appearance, behavior, and habitat of sea lions, oceanic mammals related to seals. Also included is a story from folklore explaining why Japanese fishers respected sea lions"--

The Trojan War is over, and Odysseus longs to return to wife and son on his island kingdom of Ithaca. But between hero and home stands an array of dangers unlike any ever faced by mortal man. On his epic voyage-an adventure so grand and glorious it has become the very symbol for all great journeys-Odysseus must face the monstrous cyclops, escape the enchanting nymph Circe, defy the terrors of Scylla and Charybdis, and descend to the land of the dead....

Adler uses a mystery concept to introduce algebraic equations and problem solving.

Here is the story of the Apollo 11 mission to the Moon -- a story of leaving and returning during the summer of 1969, and a story of home, seen whole, from far away by steady astronauts in their great machines.

Text and photographs explore the physical characteristics, life forms, and fragility of the world's oceans.