Materials: -any citrus fruits (lemon, orange, lime, tomato) -2 inch copper nail -2 inch zinc (galvanized) nail -small colored/opaque light bulb with 2 inch lead (holiday LED light) -copper wire (enough to connect all nails) - electrical tape or crocodile clip -micro ammeter
Steps:
Prepare fruit for experiment by squeezing it on all sides
Not hard enough to break skin
Do this to soften fruit
Insert nails into fruit, approximately 2 inches apart from each other
Sharp end of nails should be in the center of the fruit but not touching each other
Do not pierce nails through other side of fruit
Remove insulation around the bulb wires (the lead) so you can expose enough wire to wrap around the nails
Take one end of the exposed wire and wrap it around the zinc (galvanized) nail
If wire slips off, use electrical tape to hold together
Wrap other end of exposed wire around the copper nail
Take second wire, wrap one exposed end around the copper nail
Take other end of second wire and attach to the light bulb