Students will investigate the reactivity of different metals by measuring voltages produces using citrus fruit and metal strips, and use "ACME" to explain that a battery is a corrosion cell. 

The lesson plan and worksheets are available for download below. 

Materials (Per student group of 4) You must list how many students you have in your reservation to receive the correct amount of materials:

+ 4 oranges (or other citrus fruit) 

+ 1 2" aluminum metal strip

+ 1 2" Lead metal strip

+ 1 2" Tin metal strip

+ 1 2" Zinc metal strip

+ 4 2" Magnesium strips

+ 1 2" Iron strip

+ 5 alligator clip cords

+ 1 Voltmeter or Multimeter

+ 1 LED light