| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| Gneiss & schist are examples of this class of rock transformed by heat, pressure or chemical reactions | metamorphic | $400 | DJ | EARTH SCIENCE | 2026-03-06 | #9515 | |
| The 3 major rock classes are igneous, sedimentary & this, formed by changes to the other 2 types | metamorphic | $1,600 | DJ | EARTH SCIENCE | 2016-11-28 | #7411 |