(Sample link) NASA for high school students http://www.nasa.gov/audience/forstudents/9-12/features/index.html
(Sample link) National Geographic http://www.nationalgeographic.com
Graphing tutorial http://nces.ed.gov/nceskids/createagraph
Link to Density of Elements for chemistry class http://en.wikipedia.org/wiki/list_of_elements_by_density
Flinn Safety Contract Link http://www.labsafety.org/freedocs/Safety_Contract.pdf
Cell Unit Help http://www.johnkyrk.com/CellIndex.html
Cell Unit Help http://www.wisc-online.com/objects/index_tj.asp?
Cell Unit Help http://www.wisc-online.com/objects/index_tj.asp?objID=AP11604
Cell Membrane http://www.abdn.ac.uk/~clt011/flash/samples/liposomes.swf
Videos about how stuff works! Great for searching all subjects http://videos.howstuffworks.com/
Cell Division Video of a real cell http://videos.howstuffworks.com/hsw/10619-genes-and-dna-cell-division-video.htm
Illustrated Video of Cell Division. Note: The only problem with the video is that it refers to the entire process as Mitosis (which is inaccurate because mitosis is only the phases that deal with the division of the nucleus) when it should refer to the entire process as the CELL CYCLE! http://videos.howstuffworks.com/hsw/12713-cell-division-mitosis-video.htm
Illustrated Meiosis Video (under 2 Minutes long) http://www.johnkyrk.com/meiosis.html