| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| half life of water | 0.48 | 0.3 | 46 | 87 | 18 |
| half | 1.97 | 0.8 | 3140 | 68 | 4 |
| life | 1.84 | 0.9 | 2795 | 24 | 4 |
| of | 1.16 | 1 | 8616 | 37 | 2 |
| water | 1.29 | 0.4 | 8705 | 23 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| half life of water | 1.8 | 0.8 | 2059 | 15 |
| half life water hazard | 0.61 | 0.6 | 2745 | 60 |
| half life water puzzle | 0.51 | 0.1 | 8880 | 47 |
| half life 2 water hazard walkthrough | 0.75 | 0.5 | 9580 | 52 |
| half life 2 water hazard | 1.14 | 1 | 3601 | 80 |
| ozone half life in water | 0.19 | 0.6 | 3480 | 64 |
| chlorine half life in water | 0.34 | 0.5 | 113 | 86 |
| half life 2 water hazard gate | 1.34 | 1 | 2800 | 24 |
| half life 2 water hazard stuck gate | 0.4 | 0.1 | 9032 | 13 |
| half life 2 water hazard helicopter | 1.41 | 0.8 | 2527 | 44 |
