| Year | Answer | % Correct |
|---|---|---|
| 2500 B.C. | Gold | 100%
|
| 8000 B.C. | Copper | 92%
|
| 3000 B.C. | Silver | 92%
|
| 2000 B.C. | Iron | 88%
|
| 3000 B.C. | Tin | 79%
|
| 4000 B.C. | Lead | 71%
|
| 3750 B.C. | Carbon | 67%
|
| 1500 B.C. | Mercury | 50%
|
| 500 B.C. | Sulfur | 38%
|
| 3000 B.C. | Antimony | 13%
|