Surprisingly, a potato can run a clock. You must insert a galvanized nail in one part of the potato and a copper wire is inserted in another part of the potato. This will convert the chemical energy in a potato into electrical energy that could run a clock. You can find more information here: http://www.kidzworld.com/article/4726-ho...

Yes, a potato can run a clock. My grandpa had a clock that ran off of two potatoes. The potato clock experiment has been used for years to show how chemical energy can be converted into electrical energy. You can find more information here: http://www.kidzworld.com/article/4726-ho...