Link to sites is here:
http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html
http://imagine.gsfc.nasa.gov/docs/dictionary.html
http://www.lbl.gov/MicroWorlds/ALSTool/EMSpec/EMSpec2.html
http://camillasenior.homestead.com/optics3.html
Webquest is here: http://www.sciencewithmrjones.com/downloads/astronomy/universe/electromagneti…&_light_-_webquest.pdf