Phet Simulations  http://phet.colorado.edu/en/simulations/category/biology

How to perform serial dilutions

Teaching Spectrophotometry and Standard Curve
Can use the videos and practice with data sets so that the students can handle graphing and solving for unknowns as shown in the Bio 131 course study guide
 
https://www.youtube.com/watch?v=xHQM4BbR040
 
https://www.youtube.com/watch?v=pxC6F7bK8CU
 
http://www.dnatube.com/video/7543/The-Molecule-Dissector-Mass-Spectrometry
 
https://www.youtube.com/watch?v=vf6114p2Hjw
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