They put chemicals in it.
red food colouring;)
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.
Copper
A metal called aluminium.
barium nitrate
black powder forces the stars out and ignites them.
One popular firework that includes the word "rock" is the "Rock 'n' Roll" firework. This firework typically features vibrant colors and crackling effects, adding a festive touch to any celebration. Its name suggests a lively and energetic display, perfect for parties and events. The combination of sound and visual excitement makes it a favorite among firework enthusiasts.
A banger is a slang term for a sausage, a firework which makes a bang, or a worn-out car.
firefighter? depends but county makes about $35-42
A banger is a slang term for a sausage, a firework which makes a bang, or a worn-out car.
A firework takes off when it is ignited, causing a chemical reaction inside the firework. This reaction produces gas rapidly, building up pressure inside the firework until it eventually forces the firework to launch into the sky.
There are several possibilities. Strontium is probably the most beautiful red, but many of its salts are hygroscopic.