The colorful and impressive fireworks displays seen during New Year’s Eve, Fourth of July, and other events pack a lot of chemistry into those “Ooooo! Aah!” moments.
https://www.acs.org/content/acs/en/education/students/highschool/chemistryclubs/activities/fireworks.html
https://www.acs.org/content/acs/en/education/students/highschool/chemistryclubs/activities/fireworks.html