Johan Carlsson| Quantity | Component name | |
| 4 | × | Post-1982 US pennies (zinc core with copper coating) |
| 3 | × | Coffee filters (or similar) |
| 1 | × | Household vinegar |
| 1 | × | Red LED |
Science-Fair Penny Volta Pile
My son and I did this 3-cell, 4-penny Volta pile for his 3rd grade Science Fair. His school is closed, so we're putting the project online.