| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| The discovery of this element in 1669 has led to a lot of friction--in matches | phosphorus | $800 | J | NOT SO RECENT SCIENCE | 2023-10-10 | #8947 | |
| The discovery of this element in 1669 has led to a lot of friction--in matches | phosphorus | $800 | J | NOT SO RECENT SCIENCE | 2002-10-25 | #4175 | |
| Abbreviated "P", this element comes in red, white, & black forms | phosphorus | $400 | J | PHYSICAL SCIENCE | 1988-01-11 | #776 |