Tiny sticks of wood, each with a droplet of red compound liquid drying on its end, traveling together en mass through a metal matchstick making machine. This is how commercial safety matches are made, via the Science Channel.
Follow this video with a math challenge: The Matchstick Triangle Puzzle. Plus: Candle Chemistry and a match burning in slow motion.Curated, kid-friendly, independently-published. Support this mission by becoming a sustaining member today.