| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| 2024 breaking news: "Evidence of Dark" (not photosynthetic) this element "Production at the Abyssal Seafloor" | oxygen | $800 | DJ | TITLES OF SCIENTIFIC PAPERS & ARTICLES | 2024-12-18 | #9228 | |
| Air consists of about 78% nitrogen, 1% argon & 21% this gas | oxygen | $400 | DJ | GETTING SCIENTIFIC | 2003-03-25 | #4282 | |
| Pause, take a deep breath, & then buzz in if you know that Joseph Priestley helped discover this | oxygen | $200 | J | SCIENTISTS | 1989-01-18 | #1013 |