| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| national academy of sciences history | 0.46 | 0.5 | 7666 | 43 |
| national academy of sciences wiki | 0.98 | 0.9 | 6254 | 92 |
| national academy of sciences wikipedia | 0.09 | 0.9 | 345 | 65 |
| the national academy of sciences | 1.24 | 0.1 | 2067 | 70 |
| national academy of sciences 1973 | 1.48 | 0.1 | 6781 | 47 |
| national academy of sciences united states | 0.02 | 0.3 | 1554 | 46 |
| national academy of sciences american | 0.1 | 0.4 | 5877 | 97 |
| national academy of sciences usa | 1.96 | 0.1 | 503 | 47 |
| the national academy of sciences nas | 1.05 | 0.7 | 5017 | 63 |
| national academy of sciences logo | 0.2 | 0.2 | 8509 | 22 |
| the national science academy | 1.99 | 0.5 | 2997 | 38 |
