Presents an illustrated introduction to the Earth, describes the atmospheres of the other planets in the solar system, and explains the reasons why Earth is capable of sustaining life.
"...an up-to-the-minute encyclopedia specially written for young students. Young readers will have fun learning new and exciting information about human life, our incredible world and beyond."--p. [4] of cover.
Tells the story of how people have learned and continue to learn about their world, covering explorations, discoveries, inventions, theories, and speculation.
Presents a National Geographic Student Atlas of the World, with photographs and graphics of the planet, detailed maps, Web links, thematic indexes on a variety of topics, country flags, and fact boxes.