| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| natural history on the net | 1.25 | 0.7 | 228 | 38 |
| natural history museum netherlands | 0.35 | 0.6 | 4242 | 42 |
| history on the net | 0.22 | 0.1 | 5091 | 2 |
| history of natural history | 1.72 | 0.9 | 3054 | 44 |
| what is natural history | 1.83 | 0.9 | 7387 | 10 |
| american history of natural history | 1.03 | 0.3 | 2755 | 19 |
| society history of natural history | 0.33 | 0.3 | 8394 | 26 |
| review on natural history | 0.26 | 0.6 | 5113 | 44 |
| worlds of natural history | 1.97 | 0.5 | 3739 | 60 |
| the natural history book | 1.07 | 0.8 | 2758 | 65 |
| today in history history net | 1.82 | 0.7 | 775 | 80 |
| the history of nature | 1.54 | 0.6 | 69 | 16 |
| natural history written by | 1.72 | 0.7 | 362 | 43 |
| natural history time line | 0.65 | 0.5 | 9786 | 63 |
| today in history net | 1.18 | 0.7 | 3531 | 63 |
| american of natural history | 0.45 | 0.2 | 9914 | 38 |
| meaning of natural history | 0.51 | 0.4 | 4123 | 74 |
| history.net today in history | 0.09 | 0.8 | 3599 | 78 |
