| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| penicillin discovery year | 0.09 | 0.4 | 1383 | 49 | 25 |
| penicillin | 0.07 | 0.2 | 433 | 77 | 10 |
| discovery | 0.4 | 0.5 | 7762 | 11 | 9 |
| year | 0.69 | 0.9 | 1767 | 43 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| penicillin discovery year | 0.02 | 0.8 | 563 | 87 |
| penicillin discovery accident | 1.13 | 0.9 | 1206 | 31 |
| penicillin discovery article | 0.82 | 0.4 | 6519 | 49 |
| alexander fleming penicillin discovery year | 1.2 | 0.6 | 1768 | 50 |
| accidental discovery of penicillin | 1.82 | 0.7 | 2777 | 66 |
| was the discovery of penicillin an accident | 1.16 | 0.3 | 2875 | 76 |
| accidental discovery of penicillin story | 1.86 | 0.6 | 357 | 16 |
