| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| variable definition biology | 0.9 | 0.3 | 2573 | 28 | 27 |
| variable | 1.6 | 0.6 | 9765 | 80 | 8 |
| definition | 0.04 | 0.4 | 1943 | 81 | 10 |
| biology | 0.2 | 0.7 | 3254 | 70 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| variable definition biology | 1.06 | 0.9 | 8214 | 57 |
| independent variable definition biology | 1.68 | 1 | 665 | 16 |
| dependent variable definition biology | 1.75 | 0.8 | 3491 | 10 |
| control variable definition biology | 0.24 | 0.8 | 1066 | 75 |
| controlled variable definition biology | 1.72 | 0.2 | 415 | 17 |
| confounding variable definition biology | 0.82 | 0.4 | 1381 | 52 |
