| Answer | Crossword Clue |
|---|---|
| ACIDS | They redden litmus |
| ALKALIS | They make litmus blue |
| ACIDS | They turn litmus red |
| ACIDS | They turn litmus paper red |
| Answer | Crossword Clue |
|---|---|
| ACIDS | They redden litmus |
| ALKALIS | They make litmus blue |
| ACIDS | They turn litmus red |
| ACIDS | They turn litmus paper red |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.