| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| academic earth free online courses | 0.36 | 0.1 | 6560 | 25 |
| free online earth science courses | 1.6 | 0.4 | 6176 | 83 |
| online earth science courses | 0.1 | 0.6 | 3586 | 9 |
| online earth science college courses | 1.35 | 0.3 | 6391 | 74 |
| free earth science courses | 1.39 | 0.6 | 9762 | 100 |
| earth science course online free | 1.46 | 0.5 | 4658 | 15 |
| academic earth.com | 1.65 | 0.5 | 2997 | 1 |
| cheap online earth science courses | 0.17 | 0.8 | 4780 | 16 |
| online classes for earth science | 0.42 | 0.3 | 1435 | 99 |
| earth science course online | 0.99 | 0.2 | 6294 | 66 |
| online earth science courses for teachers | 0.7 | 0.8 | 5182 | 75 |
| earth science course online college | 0.78 | 1 | 720 | 13 |
| earth science course online accredited | 0.49 | 0.5 | 7258 | 92 |
| courses in earth science | 0.28 | 0.3 | 4078 | 14 |
| earth science undergraduate courses | 0.63 | 0.8 | 8730 | 83 |
| earth science course online for high school | 1.07 | 1 | 1639 | 84 |
| earth science course online for teachers | 1.74 | 0.8 | 5880 | 43 |
| online degree earth science | 1.14 | 0.2 | 2642 | 23 |
| online earth science degrees | 0.63 | 1 | 8092 | 5 |
| earth science college course | 1.54 | 0.8 | 2762 | 68 |
