Across
- 4. in a firework and in outer space
- 6. inventors of gunpowder
- 7. used to make fireworks and invented by ancient Chinese alchemists
Down
- 1. what did the ancient Chinese call gunpowder
- 2. components:stars, gunpowder, fuse, charge
- 3. makes the firework explode in the sky- not in your hand
- 5. ancient rockets were made out of this