Hot/Cold: How Hot or Cold Can It Get?

Marc and Trini relate temperature to each other as they make ice cream and candied apples respectively. Lisa demonstrates extreme cold temperatures with liquid nitrogen. A "volcano chaser" visits the workshop to discuss volcanoes. On location, Lisa visits a glassblower. She also visits a volcano that is almost ready to erupt. (This is different from the footage used in Episode 14.) ANIMATION: Increasing heat of objects in degrees Celsius. THE BLOODHOUND GANG: "The Case of the Professor's Fleas," a one-shot mystery surrounding a flea circus that has had all its stars stolen.