1. Fireworks
He noticed that the saltpeter made the fire burn more brightly. ... An unknown person found that if the gunpowder mixture was put inside of the bamboo tubes and thrown in the fire to be ignited, the gases produced by the burning gunpowder would blast the tube apart with a much louder and more powerful bang. ... This chemical produces the oxygen needed for rapid burning. ... This process is called burning. ...
- Word Count: 1438
- Approx Pages: 6
- Grade Level: High School