Helpful+Science+Websites

=Helpful Science Websites=

Chemistry Websites
http://www.webelements.com/---A helpful website will a lot of information about the various elements. [|http://www.chemicalelements.com/] --A lot of information about the elements http://periodic.lanl.gov/default.htm --Information about the elements from the Los Alamos Laboratory. http://www.americanelements.com/ This website belongs to a company that sells elements to universities and other companies. A great site current market values and current research being done with the elements. http://pubs.acs.org/cen/80th/elements.html A great cite from the magazine Chemical and Engineering News. Good background on the origin of the element names and common uses http://environmentalchemistry.com/yogi/periodic/ Again, a great website for element information. http://www.periodicvideos.com/ Some cool videos about each of the elements. Some element videos are longer than others.
 * Information about the elements**

Periodic Table Live! A great website with lots of information, pictures, and videos of the elements.

http://environmentalchemistry.com/yogi/reference/molar.html --This is a good site, also gives you the % by mass of each element in the compound http://www.nitrogenorder.org/cgi-bin/mass.cgi --This is a very good calculator, it actually shows the work that went in to the calculation and also the % composition.
 * Molar Mass Calculators**

http://www.nitrogenorder.org/cgi-bin/balance.cgi --Type in the compounds and this site will show you the reaction with the proper coefficients
 * Chemical Equation Balancers**

Physics Websites
Engineering Project Helpful Websites:

[] Good information about the different types of bridges [] Good information on pretty much anything bridge related [] More good information [] Video about the Tacoma Narrows Bridge collapse