| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| The "Medieval Warm Period" that began in the 10th century ended with the "Little" this 400 years later | ice age | $1,200 | DJ | COLD SCIENCE | 2015-07-29 | #7123 | |
| Scientists say the Earth has warmed about 9 degrees since the last of these frigid ages | Ice Age | $400 | DJ | SCIENCE | 1999-07-22 | #3444 | |
| Studying "on the rocks" of northern Europe, Jean Louis Agassiz developed the idea of this "age" | Ice Age | $600 | DJ | MEN OF SCIENCE | 1998-05-05 | #3162 |