| Answer | Crossword Clue |
|---|---|
| RADIUM | Element discovered by the Curies |
| RADIUM | Element discovered by Marie and Pierre Curie |
| HASSIUM | Element named for the German state where it was discovered |
| ZERO | Concept discovered independently by the Maya |
| Answer | Crossword Clue |
|---|---|
| RADIUM | Element discovered by the Curies |
| RADIUM | Element discovered by Marie and Pierre Curie |
| HASSIUM | Element named for the German state where it was discovered |
| ZERO | Concept discovered independently by the Maya |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.