Presents extensive data on the habitats and ecosystems of more than 1,200 species identified as endangered or threatened by the U.S. Fish and Wildlife service.

Offers information on the ways in which different chemical elements combine to form commonly-used chemical compounds, such as water, ammonia, and aspirin. Defines what a chemical compound actually is and the difference between organic and inorganic compounds, as well as providing definitions of acids, bases, salts, oxides, and coordination compounds.

Arranged alphabetically by topic, this encyclopedia covers chemistry, its laws, processes, applications and subdisciplines. Reviews the history of the field, from the Bronze Age and alchemy up to modern research and practical applications.

Including the addition of 25 new species, this new 2nd edition is completely updated to reflect the changes in endangered and threatened status. Color photographs and maps provide further illustrate the many species threatened by extinction, including amphibians, birds, crustaceans, fish, insects, mammals, mollusks, reptiles, and more.

This resource book offers broad, comprehensive coverage of the animal kingdom, ranging from the simple -- sponges and corals -- to the complex -- mammals. Animals are grouped by major classifications: sponges; corals; jellyfishes; segmented worms; crustaceans and mollusks; insects; fishes; amphibians; reptiles; birds; and mammals.

Includes full-text access to hundreds of information technology titles in more than 20 categories, including Business Reference Certification, Cisco, Creative Media, Database, Desktop Productivity, e-Business, Enterprise Computing, Java, Linux/Unix, Macintosh, .NET, Networking, Perl, Photoshop, Programming, Software Engineering, Web Administration, Web Authoring and Design, Web Development, Win

Science in Context is an in-depth, curriculum-oriented science database that provides a one-stop resource for all science-related research needs.

Features alphabetically arranged entries on theories, concepts, and scientific discoveries and developments pertinent to the study of life science in schools today. Also featured is a chronology of discoveries and a report topic section that suggests a range of research topics and experiment ideas.

This alphabetically organized set opens up the entire world of science in clear, nontechnical language. Topics profiled are related to the physical, life, and earth sciences, as well as to math, psychology, engineering, technology, and the environment.

Introduces students to the topic of weather and natural disasters, covering such topics as weather basics, weather phenomena, forecasting, and climate.

An overview of the science and technology databases available online at Richland County Public Library.

This site provides free web hosting and site development tools.

This site is an extensive mathematics resource. Subjects covered with a detailed page include numbers, geometry, mathematical theory, calculus, and algebra.

This site offers reliable, accurate, and entertaining information on the function of all manner of things from jet engines to cellular telephones.

 One of the most comprehensive sites devoted to the Internet and its history and development.

Nine Planets offers a multimedia tour of the nine planets. It includes history, mythology, and current scientific knowledge of each of the planets and moons in our solar system.

This Web search engine (currently beta version) is designed to search across and federate more than 300 science-related public and commercial Web collections.

This site offers fascinating news and developments in science and technology. Also included are excellent science and technology website reviews.

This site aims to provide all the tools necessary to learn math including expert answers, online tutors, and a broad range of on-line math calculators and conversion tools.