Fireworks light up the sky on the 4th of July with vibrant colors thanks to science. The dazzling hues come from specific combinations of metals and salts within each firework. Strontium creates red, barium produces green, and copper results in vivid blues. Additional chemicals like chlorine enhance brightness, while potassium nitrate and sulfur aid in burning. Chlorates and nitrates supply oxygen for the explosions. This colorful phenomenon is similar to meteor showers, where the chemical makeup of space rocks causes glowing colors as they burn in Earth's atmosphere. https://www.accuweather.com/en/weather-news/what-makes-fireworks-burst-with-vibrant-colors/1663023