The Science of Firecrackers
special powderHave you ever heard a loud pop in the sky during a holiday? A firecrackerfirecrackertubepowderburns very fast. Because the burns so quickly, it makes hot gas that pushes out hard, so the filled with that explodes with a bang. is a small
bright sparks and colorful lightsSome firecrackerfirecracker on the Fourth of July, you’ll know the noise and colors come from that fast-burning powder inside. designs also throw out . Next time you see a