Okay, so you know when you watch fireworks and sometimes they shoot up really high and explode with a loud bang? That's called a salute.
Salutes are special fireworks that are designed to make a really loud noise when they explode. They usually have a metal cap on top that makes the loud bang sound.
In order to make a salute, you need to use special chemicals and powders that will burn quickly and create a lot of pressure. When the pressure builds up inside the firework, it causes the metal cap to burst and create the loud bang noise.
Salutes are really cool to watch, but they can also be very dangerous if you're not careful. It's important to always follow the instructions on the fireworks and stay a safe distance away when they're lit.