| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| why hot air rises up | 0.3 | 0.1 | 2296 | 53 |
| why hot air rises and cold air sinks | 0.88 | 0.1 | 5161 | 13 |
| why hot air balloon rises up | 1.16 | 0.8 | 1287 | 72 |
| why is hot air hot and rises up | 0.89 | 0.4 | 1622 | 78 |
| why a balloon inflated with hot air rises up | 1.98 | 0.2 | 8165 | 96 |
| why does heated air rises up | 0.15 | 0.3 | 4081 | 9 |
| hot air rises because | 1.49 | 0.8 | 3098 | 7 |
| why does warm air rises | 0.53 | 0.5 | 4114 | 74 |
| why is hot air hot and expands | 0.09 | 0.2 | 1131 | 98 |
| why does hot air expand | 0.85 | 0.3 | 9115 | 43 |
| why does air rise when heated | 1.37 | 0.5 | 8535 | 50 |
| generally when hot air rises | 1.8 | 0.5 | 4347 | 45 |
| why does heat rise in the air | 1.75 | 0.4 | 6940 | 15 |
