If Mrs.Hunt gave me 5-10 minutes in class to teach them something I would teach the class about the different types of chemicals they use in fireworks. I have researched some of the things they use. Like they use foil for some of the sparkling effects, they also use of course black gun powder. They also use this kind of rice covered in gun powder to make the sparkling rain effect. They also use multiple different types of metals to create the colors. I was once really fascinated by the physics of fireworks and wanted to learn more. Thats how i know most of this stuff 🙂