Sun-Earth Viewer
http://ds9.ssl.berkeley.edu/viewer/flash/

From NASA and Ideum, a company that provides media services to museums, schools, non-profit organizations and corporations. This site allows the viewer to zoom and pan live solar and Earth images from NASA. It also contains video interviews with scientists and detailed scientific animations and visualizations. Viewing this site requires a Flash 6 Player.
You can view past SOHO images and movies of the sun directly from NASA here

Snow Crystals
http://www.snowcrystals.com/

Created by Caltech physicist Kenneth G. Libbrecht, this site has just about everything you could want to know about snowflakes and crystal formation in ice. (It’s true that no two are exactly alike, though there are categories of snowflakes.) There are lots of pictures and information on things you can do, like grow your own snowflake crystals. A great site about a fascinating subject.

The Wonders of Physics
http://sprott.physics.wisc.edu/wop.htm

An on-line guide to shows produced by the University of Wisconsin-Madison physics department, this site gives details of the annual shows in Madison as well as traveling shows, and offers tapes of the shows and software for physics demonstrations.

AMANDA
Antarctic Muon and Neutrino Detector Array http://amanda.wisc.edu

IceCube/AMANDA project. The project is searching for elusive sub atomic particles called neutrinos by burying light detectors in Antarctic ice. Only neutrinos can provide information about supernovas and what goes on in black holes. The site has articles, photos, movies and animation.

The Physics of Baseball
http://www.npl.uiuc.edu/~a-nathan/pob

The Physics of Baseball, run by University of Illinois Physics Professor Alan Nathan, who is obviously a baseball nut. Offers physics lessons from the relatively basic (wood versus aluminum bats), to more advanced (advanced vibration damping technique in aluminum bats). A kid could get hooked on science through this site.

Mr Wizard Studios
http://www.mrwizardstudios.com

Mr. Wizard Studios, the web site of Don Herbert, television’s Mr. Wizard. “Watch Mr. Wizard” went on the air in 1950 and ran for more than 500 episodes. Herbert has been an inspiration to Professor Shakhashiri, who dedicated the fourth volume of Chemical Demonstrations “To Don Herbert...who has perfected the art of communicating science to kids of all ages.” The site has video clips, a newsletter for teachers, and offers books and DVDs of programs.

NCES Students' Classroom
http://nces.ed.gov/nceskids

Students Classroom, from the National Center for Education Statistics. This unique site allows students to test and compare their science and math knowledge with students in the rest of the world. Each question has an explanation of the answer and links to other good sites that elaborate on the answers.

Animal Info
http://www.animalinfo.org

Animal Info, Information on Endangered Species. This site includes extensive information, many pictures and interactive tools as well as links to other sites and organizations. It can be searched by species, category or country. A great site on a topic of strong interest.

Science for the Fun of It
http://www.lib.virginia.edu/science/resources/scifun.html

Science and Engineering Libraries Resources, University of Virginia Library. The main feature is links to about 140 of what it calls “whimsical and unusual science-related web sites” (including this one), with lots of topics of interest to web surfers of all ages.

The University of Wisconsin
Chemistry Department
http://www.chem.wisc.edu

The official web site of the University of Wisconsin-Madison chemistry department has descriptions of research and facilities at the University, opportunities for undergraduate and graduate students and descriptions of outreach efforts.

Chemical Heritage Foundation
http://www.chemheritage.org

The Foundation has a museum at its headquarters in Philadelphia. The site has articles, photos and oral histories all dealing with the history of science.

National Science Teachers Association
http://www.nsta.org

The Association’s official site provides interesting on-line magazines for teachers at every level of K-12 schooling as well as lots of links to other good sites and science news.

Science and Engineering Indicators 2008
http://www.nsf.gov/statistics/seind08/

Published by the National Science Foundation and the National Science Board, this site offers the latest statistics and reports on science and technology education, the science and engineering workforce, funding of research, public attitudes toward science, public understanding of science, and trade, technology and the global marketplace. This is the most comprehensive source of data about the current status of science and technology.