How do fire works explode?

Answer 1

fire works contain black powder aka gun powder. it consists of charcoal, sulfur, and potassium oxide. when ignited, the charcoal acts like a slower burning fuel, sulfur makes the smell (kind of like eggs) and the potassium oxide goes boom.

Answer 2

Fireworks explode when the chemical compounds inside them are ignited. When the fuse is lit, it sets off a chain reaction that leads to the rapid combustion of the compounds, resulting in the explosion of colors and patterns we see in the sky.