| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| does hot air expand or contract | 0.36 | 0.4 | 5888 | 44 |
| does hot air expand | 0.24 | 0.8 | 4238 | 31 |
| does warm air contract or expand | 0.23 | 0.6 | 8874 | 16 |
| does heat contract or expand | 0.79 | 0.8 | 4685 | 34 |
| does heated air expand | 1.55 | 0.2 | 1634 | 37 |
| does heat expand or contract things | 0.85 | 0.7 | 7837 | 78 |
| does air expand when heated | 1.55 | 1 | 3974 | 15 |
| does heat make things expand or contract | 0.79 | 0.4 | 1297 | 1 |
| why is hot air hot and expands | 0.07 | 0.4 | 9406 | 64 |
| does cold air expand or contract | 1.66 | 0.6 | 2029 | 35 |
| does warm air expand | 1.27 | 0.8 | 5060 | 72 |
| air expand on heating | 2 | 0.1 | 3393 | 19 |
| does hot water expand or contract | 1.26 | 0.4 | 4236 | 45 |
| expand when heated and contract when cooled | 0.22 | 0.9 | 354 | 68 |
| does air expand when cooled | 1.55 | 0.5 | 9597 | 25 |
| does hot air go up | 1.65 | 0.3 | 4977 | 35 |
| does air warm as it expands | 1.52 | 0.7 | 8122 | 38 |
| expansion of air on heating | 1.86 | 0.7 | 2017 | 18 |
| when air expands what happens | 0.42 | 0.7 | 9610 | 98 |
