Try some of these links for further information:
http://www.nasa.gov/centers/johnson/home/index.html Johnson Space Center; check out their 500 best "Earth from Space" photographs. You may be able to find your home city on the clickable map! Also, you can see hurricanes and tornadoes from space.
www.callabmag.com Homepage of Cal Lab Magazine- Great site, great magazine!
www.chemcenter.org Hey! Send a Chem Center Web Card to a friend! Lots of links to chemical related equipment manufacturers
pdg.lbl.gov Lawrence Berkeley National Laboratory Particle Data Group. Try their interactive tour of the inner workings of the atom, "The Particle Adventure". Great Links page
www.utm.edu/research/primes Great site! Learn more about prime numbers than you expected. Lots of good links!