Periodic Table Lecture  http://ed.voicethread.com/share/250548/
Models and Formulas Lecture  http://ed.voicethread.com/share/250592/
Electron Energy Levels Lecture http://ed.voicethread.com/share/99479/
Periodic Table Videos 1 http://www.chemheritage.org/discover/online-resources/its-elemental/index.aspx
Periodic Table Videos 2 http://www.periodicvideos.com/index.htm
Periodic Table Comic Strip www.uky.edu/Projects/Chemcomics/ Periodic Table Comic Strip
Periodic Table Review http://education.jlab.org/itselemental/index.html Periodic Table Review Activities