| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| does heat cause things to expand | 0.29 | 1 | 6587 | 88 |
| does heat cause things to expand or contract | 0.02 | 0.9 | 2672 | 92 |
| why do things expand when heated | 0.54 | 0.4 | 6120 | 8 |
| does heat expand or contract things | 1.61 | 0.5 | 7979 | 24 |
| does heat make things expand or contract | 1.74 | 0.6 | 5230 | 77 |
| does heat expand or contract | 0.03 | 0.7 | 9332 | 85 |
| why do things increase in heat | 0.98 | 0.6 | 2221 | 96 |
| does heat make metal expand | 1.25 | 0.1 | 8271 | 23 |
| expansion due to heat | 1.55 | 0.6 | 3985 | 57 |
| why do substances expand when heated | 0.87 | 0.5 | 843 | 18 |
| do hot things expand | 1.6 | 0.2 | 3782 | 33 |
| why does hot air expand | 0.29 | 0.7 | 6219 | 42 |
| do particles expand when heated | 0.06 | 0.3 | 5314 | 9 |
| does heated air expand | 1.5 | 0.2 | 7133 | 18 |
| why does air expand when heated | 1.94 | 0.5 | 4670 | 15 |
| why do substance expand on heating | 0.69 | 1 | 7889 | 21 |
| what causes heat to increase | 1.51 | 1 | 6097 | 66 |
| why do objects expand when heated | 1.37 | 0.1 | 1871 | 53 |
| why do materials expand when heated | 1.08 | 0.1 | 3904 | 52 |
| why is hot air hot and expands | 0.12 | 0.2 | 2094 | 6 |
| explain why a substance expands on heating | 0.58 | 1 | 9351 | 43 |
