Firecrackers have black powder or flash powder. These powders have charcoal, sulfur, and poatassium nitrate, aluminum, iron, steel, zinc, and/or magnesium dust. When you light up the firecrackers, it heats up these metals, and when the metals heat up, they give off a shine when they burn.
a divali firework is the light of happyness for sikhs by harjeet kaur
light a firework in it
barium
Copper
They put chemicals in it.
A metal called aluminium.
barium nitrate
u use a simple lighter
no
Yes, it is. Fireworks gives off its own light.
Sound
Well it depend how far you are from the airport.