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Every New Year, the night sky bursts into brilliant colors, captivating everyone with dazzling fireworks. The magic behind these spectacular displays comes from minerals carefully packed inside each firework.
Common metals like copper are mixed with other chemicals to form βmetal salts,β which are packed into pellets called βstarsβ along with gunpowder inside the firework shell. When the firework explodes, the intense heat, sometimes over 2,000Β°C, excites the electrons in the metal atoms. As these electrons return to their normal state, they release energy as bright, colorful light. The specific color depends on the metal used.