General Science:
Exploratorium: An Online Museum of Physical and Life Sciences
History of Science, Technology and Medicine
Inventors Museum
National Museum of Natural History, Smithsonian Institution
The Nobel Prize & Laureates
SciCentral: Gateway to the Best Science Directories
Science Daily
Science in the News Hotlist
Animals:
BIOSIS: The Internet Resource Guide for Zoology
BugBios
EMBL Reptile Database
Entomolgy Index of Internet Resources
Fish FAQ
Patuxent Wildlife Research Center
Peterson Online
The Raptor Center at University of Minnesota
U.S. Fish and Wildlife Service
Sea World / Busch Gardens Animal Information Database
Astronomy:
Earth & Sky Radio Series
The Nine Planets: a Multimedia Tour of the Solar System
Planetary Science Research Discoveries
A Space Library
StarDate Online
StarLore
The U.S. Naval Observatory (USNO)
Views of the Solar System
Biology:
The Biology Project - an Online Interactive Resource for Learning Biology
BioPoint Hotlist
Cells Alive!
Classification of Living Things
General Biology: The Best Biology & Chemistry Resources
Genetics Education Center
Human Genome Profect Information
The Tree of Life: A Phylogenetic Navigator for the Internet
Botany:
About.com Botany
Garden Gate: Roots of Botanical Names
Lady Bird Johnson Wildflower Center
PLANTS National Database
Calendars and Time:
The American Secular Calendar
Calculation of the Ecclesiastical Calendar from AD 325 on
Directorate of Time from the U.S. Naval Observatory
Perpetual Calendar
Sunrise/Sunset and Moonrise/Moonset Computations
World Time Zones
Chemistry:
The Catalyst: Chemistry Resources for the Secondary Education Teacher
ChemCenter: A Service of the American Chemistry Society
ChemEd: Chemistry Education Resources
Material Safety Data Sheets on the Internet
Unit Converter
Web Elements - Periodic Tables
Dinosaurs:
The Dinosauria
UCMP Dinosaurs in Cyberspace: Dinolinks
Discovering Dinosaurs
Zoom Dinosaurs
Earth Sciences:
Earth and Sky Home Page
Earthquake Information from the U..S.G.S.
Mineral and Gemstone Kingdom
Ocean Planet Homepage
Remarkable Ocean World
Savage Earth Online: Earthquakes, Volcanoes and Tsunamis
Volcano World
Ecology:
About.com Ecology
EcoNet Home Page
EE-Link: Environmental Education Link
EnviroLink: The Online Environmental Community
IISDnet (International Institute for Sustainable Development)
Mathematics:
Ask Dr. Math
Calculators On-Line Center
Dave's Math Reference Tables [in English & Espanol]
Dictionary of Measures, Units & Conversions
Math and Science Gateway
Math Archives
Math Forum: Selected Math Resources by Subject
Math Homework Help
Mathematics Information Servers
Women Mathematicians
Meteorology:
Meteorology: The Online Guide
NOAA Home Page
The Weather Channel
Yahoo! Weather
Periodicals:
Astronomy Magazine
Astronomy Now Online
Nature
Popular Mechanics
Popular Science
ScienceNews.com
Scientific American
Sky & Telescope's Weekly News Bulletin
Physics:
History of Physics from the American Institute of Physics
Learn Physics Today
Physics 2000
PhysLink - Your Guide to Physics and Astronomy on the Web
Space Program:
Basics of Space Flight
Hubble Space Telescope Pictures
Liftoff to Space Exploration
The NASA Homepage
NASA Kennedy Space Center
NASA Human Spaceflight
Project Galileo: Bringing Jupiter to Earth
Shuttle Launch Countdown Home Page
Space Flight History