black powder forces the stars out and ignites them.
An explosion of a firework requires heat to ignite the chemicals within the firework. Once ignited, the explosion of the firework releases light, sound, and heat energy as the chemicals burn and react.
When a firework "reports," it means that it makes a loud noise, typically a bang or explosion, as part of its visual display. This is a common effect in fireworks shows, and it adds excitement and spectacle to the overall presentation.
Definitely a chemical change, The elements in the firework undergo very rapid combustion (burning) which is a chemical change.
Yes, a firework produces its own light through a chemical reaction inside the firework's shell. The explosion of the firework ignites various compounds that create colorful light displays in the sky.
Because you can't see the explosion during the day.
They put chemicals in it.
Copper
The chemical that makes a firework green is typically barium compounds, such as barium chloride or barium nitrate. When the firework is ignited, the heat causes the barium to emit green light.
heat, sound & explosion is evolved
For an aerial shell, rule of thumb is about 50-80 feet per shell inch.
A metal called aluminium.
barium nitrate