This is how a firework works.

A firework works through a combination of chemical reactions and controlled explosions. Here's a brief overview of the process:

Ignition: A fuse is lit, which ignites the firework’s propellant.

Lifting Charge: The propellant (typically a type of gunpowder) burns rapidly, creating a burst of gas that propels the firework into the air.

Bursting Charge: Once at the desired height, a delay fuse ignites a second charge within the firework, causing it to explode.

Effect Components: The explosion disperses a mix of chemicals and metallic compounds that produce the various colors and effects seen in fireworks, such as sparks, trails, and bursts.

This combination of stages creates the visually stunning and intricate displays associated with fireworks.