BROOKLYN JUNIOR HIGH 7377 Noble Avenue North Brooklyn Park, MN 55443
MR. TRYMUCHA
http://www.webelements.com/
http://periodic.lanl.gov/default.htm
http://www.chemicalelements.com/
http://www.chemicool.com/
http://www.dayah.com/periodic/
http://www.lenntech.com/periodic-chart.htm
http://education.jlab.org/itselemental/index.html
http;//www.chm.liverpool.k12.ny.us
http://www.worldbookonline.com/wb/Home