| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| free earth science courses | 1.38 | 0.6 | 359 | 51 | 26 |
| free | 1.77 | 0.1 | 1713 | 37 | 4 |
| earth | 1.82 | 0.2 | 8276 | 70 | 5 |
| science | 1.79 | 0.3 | 2821 | 35 | 7 |
| courses | 0.57 | 1 | 8574 | 70 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| free earth science courses | 1.89 | 1 | 8210 | 82 |
