| Answer | Crossword Clue |
|---|---|
| SOLID | Like some rocket propellants |
| SOLID | Like some rocket fuel |
| LIQUIDOXYGEN | Ingredient in rocket propellants |
| NITRO | Chemical found in rocket propellants |
| SOLIDPROPELLANT | Some rocket fuel |
| IONENGINES | Some rocket thrusters |
| KEROSENE | Some rocket fuel |
| hydrazine | A colorless volatile alkaline liquid with powerful reducing properties, used in chemical synthesis and in some kinds of rocket fuels |
