Battery Building November 21st, 2013
In this activity, students will learn how to build a voltaic pile battery, which is the oldest form of electric battery. The voltaic pile battery was invented in the 1800s by Alessandro Volta using a giant stack of alternating layers of zinc, blotting paper soaked in salt water, and silver. This battery concept is the basis of the battery that students will construct — a simple battery that uses pennies, cardboard soaked in vinegar, and zinc washers for each cell. Students will then attempt to power a small LED light and a calculator with their batteries and explore the concepts of electrical current.