When a sparkler burns inside a mandarin orange, the combustion reaction is confined in a small space, intensifying the effects. The sparkler's intense heat rapidly breaks down the orange's cellular structure, potentially causing steam and gases to build up inside the fruit. This buildup of pressure can lead to a dramatic explosion, scattering orange fragments and sparks. The spectacle combines the bright, energetic light of the sparkler with the unexpected rupture of the orange, creating a visua