| Answer | Crossword Clue |
|---|---|
| CARBONBLACK | Substance used to make ink |
| DDT | Substance used to prevent disease. |
| STAIN | Substance used to impart color. |
| RENNET | Substance used to curdle milk |
| FIXATIVE | Substance used to protect or stabilize |
| AMADOU | Substance used to ignite firework fuses |
