Adding the element strontium to a color pyrotechnic mix produces a red flame; copper, blue; barium, green; and sodium for yellow. Too much or too little of the chemicals make significant changes ...

That explosion heats up those color-producing compounds, causing them to glow. And it turns out, Conkling: The hotter you can get the molecules in your flame the more ignition you're going to get ...

Without wax gas, the flame won’t burn. Your breath blows some of the wax gas away. Without this fuel, the flame will go out. The colors of a flame are caused by bits of wax molecules that didn’t get ...