UWM Libraries Research and Course Guides: Science: Web Sites

Freely Available Web Sites

CAS Common Chemistry
Nearly 500,000 chemical substances from CAS REGISTRY® cover areas of community interest, including common and frequently regulated chemicals, and those relevant to high school and undergraduate chemistry classes.
CAS Source Index (CASSI)
This resource can be used to easily look up or confirm publication titles and abbreviations, as well as CODEN, ISBN, or ISSN codes. The CASSI database contains a listing of publications indexed by Chemical Abstracts Service (CAS) since 1907.
NIST Reference on Constants, Units, and Uncertainty
The NIST Reference on Constants, Units, and Uncertainty is one of the technical activities of the Fundamental Constants Data Center of the NIST Physics Laboratory.
Science.gov
Science.gov searches over 38 databases and 1,950 selected websites, offering 200 million pages of authoritative U.S. government science information, including research and development results.

SciTech Connect
SciTech Connect is a portal to free, publicly-available DOE-sponsored R&D results including technical reports, bibliographic citations, journal articles, conference papers, books, multimedia and data information. SciTech Connect is a consolidation of two core DOE search engines, the Information Bridge and the Energy Citations Database. SciTech Connect incorporates all of the R&D information from these two products into one search interface.