John introduces the fundamental ideas of this chapter by a campfire along the shores of Lake Champlain, Vermont. Duration 1:15.
Oxidation and reduction are formally defines and the reaction of magnesium and oxygen is used as an example. Duration: 8:35.
Kai and Maile show how silver tarnish can be restored back to silver by submerging the silver into a pot of boiling water with aluminum foil in it. Duration: 4:36.
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An electric current can be created when two materials that have differing tendencies to become oxidized and reduced are placed in contact. You can't just hold the two materials together, however. They must be set up so that there is no build up of charge. Duration: 12:03.
Watch these additional videos to complete this tutorial.