| 100% | RHENIUM | 7 | Element named after a river on the France-Germany border |
| 50% | RHENIUM | 7 | Element named after a German river |
| 47% | LAI | 3 | City in Chad on the Logone River where a bitter battle occurred between France and Germany on August 21, 1914 |
| 45% | DORSETS | 7 | Sheep breeds named after a county on the English Channel coast |
| 44% | DELTA | 5 | Airline named for a region on the Mississippi river |
| 42% | NEPTUNIUM | 9 | Element named after a planet |
| 42% | EPERNAY | 7 | Town on the River Marne, France; a centre of the champagne industry |
| 42% | TOPLAKE | 7 | Reservoir on the Nevada-California border named for a gem |
| 42% | OTTAWA | 6 | Capital on a river of the same name |
| 42% | TAHOE | 5 | Chevy SUV named for a lake on the California/Nevada border |
| 41% | TITANIUM | 8 | Element named after a group in Greek myth |
| 41% | EINSTEINIUM | 11 | Element named after a famous German-born physicist |
| 41% | INDIUM | 6 | Element named after a ROY G. BIV color |
| 41% | DZERZHINSK | 10 | City in Russia on the Oka River named after the first leader of the Cheka |
| 40% | TICINO | 6 | Canton of Switzerland named after a tributary of the Po River |
| 40% | OTTAWA | 6 | Capital city on a river of the same name |
| 40% | KABUL | 5 | World capital on a river of the same name |
| 40% | OTTAWA | 6 | National capital on a river of the same name |
| 40% | LHASA | 5 | Asian capital on a river of the same name |
| 40% | SELENIUM | 8 | Element named after the moon |
| 40% | NIGER | 5 | River on the Benin border |
| 40% | BLUE | 4 | ___ Earth, city in Minnesota named after a river |
| 40% | BEND | 4 | City in Oregon named after a river feature |
| 40% | STYX | 4 | 1980s band named after a river of Hades |
| 40% | ODER | 4 | River partly on the Poland-Germany border |
| 40% | URANIUM | 7 | Element named after the seventh planet |
| 39% | ODER | 4 | River on the German-Polish border |
| 39% | THORIUM | 7 | Element named after the Norse god of thunder |
| 39% | HYDROGEN | 8 | Element named after the Greek word for water |
| 39% | HELIUM | 6 | Element named after the Greek word for "sun" |