[youtube http://www.youtube.com/watch?v=zYS9kdS56l8?wmode=transparent&autohide=1&egm=0&hd=1&iv_load_policy=3&modestbranding=1&rel=0&showinfo=0&showsearch=0&w=500&h=374]
This is a pretty cool basic video about how electricity works. Bonus points for the description of Ohm’s Law at the end (hint: it isn’t about math).
(Source: http://www.youtube.com/)