Glass

Circus ringmaster Howie introduces the fabulous juggler Baboo, who juggles more and more balls until... back to reality and the balls drop, breaking a glass. They wonder, ,How is glass made?, and visit glassblower Minna at her glass-making studio. They learn about the ingredients used to make glass, how the hot oven heats the ingredients, and Howie helps Minna blow the glass into a drinking glass.