Science

General Science

Discovery
Exploratorium
National Science Foundation – Classroom Resources
Khan Academy – Free Online Tutorials
LiveScience
New Scientist
New York Times Science Section
Nova-Scientific Broadcasting
Public Library of Science (PLoS)
Popular Science
Sci Central
Science (Journal)
Science.gov
Science 360 Videos–National Science Foundation
Scientific American
Smithsonian Institution’s Science Encyclopedia
Why Files (University of Wisconsin)

Biological Science

All About Birds – Cornell Ornithology Lab
American Museum of Natural History
ARKive- Endangered Species
Biodiversity Heritage Library -International (Historical Public Domain Texts)
Birds of Dutchess County (Ralph T. Waterman Bird Club, c.2014)
Botanical Society of America
Census of Marine Life
DNA from the Beginning
Electronic Zoo
Nature
Plants Database (USDA)

Earth Science and Astronomy

Astronomy (Magazine)
Earth and Moon Viewer
Earthquake Information from the USGS
NASA – Spaceflight
Solar System Simulator – NASA
Space
Sun and Moon Data
Volcano Watch (USGS)

Applied Sciences –Technology and Engineering

CNet
How Products Are Made
How Stuff Works
Popular Mechanics
Technology Review (MIT)
U.S. Department of Energy – Science & Technology

Mathematics

Math Forum “Ask Dr. Math” (Drexel University)
Cornell Theory Center Math and Science Gateway

Weather/Meteorology

National Weather Service
Weather Spotter’s Field Guide
Weather Underground