Features: - Includes vocabulary word hunt with pronunciations, glossary, and index - Labeled diagrams and timelines - Beautiful, full-color photographs - Simple interior design and easy-to-read fonts - Web sites for further research and information - Vocabulary preview and review pages plus backmatter pages that invite readers to think further on the study topics - Fits science curriculum standards for earth & space science and science and technology What's New: - Updated illustrations and photos - Updated art of solar system shows 8 planets and their orbits instead of 9 - New Pluto book includes a list of other dwarf planets, in addition to Pluto, in our solar system - Updated information on space missions, moons, and planets - Updated Web sites for further information in backmatter - Updated indexes