| same properties | 0.40 |
| less suitable | 0.23 |
| suitable | 0.16 |
| the earliest known chem… | 0.44 |
| low explosive | 0.31 |
| invented in china | 0.68 |
| used as propellant | 0.65 |
| composed of charcoal | 0.59 |
| being made | 0.51 |
| invented | 0.49 |
| stored | 0.47 |
| applied to mining | 0.40 |
| applied to rock chunks | 0.40 |
| made in england | 0.40 |
| invented in 9th century | 0.40 |
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