| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| why is hot air hot and how does it expand | 0.78 | 0.1 | 9262 | 43 |
| why is hot air hot and expands | 0.36 | 0.5 | 6808 | 46 |
| does hot air expand | 0.85 | 1 | 4589 | 24 |
| why does air expand when heated | 1.3 | 0.8 | 938 | 87 |
| why is hot air hot | 1.24 | 0.6 | 7443 | 1 |
| why does hot air always rise | 0.38 | 0.6 | 4749 | 60 |
| does hot air expand or contract | 1.92 | 1 | 8815 | 66 |
| how does air get hot | 1.45 | 0.6 | 3514 | 49 |
| does heated air expand | 1.87 | 0.6 | 588 | 53 |
| how does hot air tend to move | 0.52 | 0.9 | 1213 | 90 |
| why does heat rise in the air | 2 | 0.6 | 5933 | 86 |
| why does heated air rises up | 1.52 | 0.3 | 2497 | 68 |
| does warm air expand | 0.58 | 1 | 4677 | 17 |
| does heat cause things to expand | 0.98 | 0.3 | 1998 | 68 |
| why do things expand when heated | 1.04 | 0.9 | 4633 | 52 |
| does heat make things expand | 0.24 | 0.5 | 8384 | 48 |
