Electrophoresis is a technique used for the separation of molecules by means of electric current.
In this case, the molecules to be separated are placed in wells of an agarose gel medium which is submerged below the surface of a buffer. The molecules will move in the electrical field according to their charges. One day to build the boxes and power sources if each class takes up where the previous class left off. Although 45 volts do not deliver enough current to be harmful to the human body, students should be instructed not to place fingers in the buffer solution and to close the containers while current is running. Use appropriate precautions in use of electrical gun, hot glue, and pointed objects.