Traces the steps taken in creating fireworks, describing how a firework includes three main parts surrounded by paper, how a flammable mixture is combined with other chemicals to create colors, and how the charges and fuses are placed to ignite the firework.
Traces the steps taken in creating a pencil, including baking a mixture of graphite and clay for the pencil lead, carving grooves into cedar slats to hold the lead, forming the slats into pencils, and then adding paint, lacquer, and stamps.