Pop quiz on gross anatomy

Is there anything more fascinating than boogers, poop or vomit? Not to kids.

That’s been the experience of actress and dietitian-in-training Della Lisi, whose alter ego is game show hostess Sally Snot. Her one-hour show, “Gross Me Out!” asks, and answers, the questions kids have about bodily functions. Why is urine yellow? What is ear wax?

The point of the show isn’t to be disgusting. “We’re discussing bodily functions that are fascinating, giggling about how silly they are, and then we discuss some really interesting science,” Lisi says.

The “Gross Me Out!” game show grew out of a program written by Chris Trela for the Discovery Science Center in Santa Ana. Lisi divides the audience into groups that answer multiple-choice questions; there also are sing-alongs and prizes.

“We bring a lot of parents up onstage too,” Lisi says. “When a dad gets teased about his digestive system, the kids are all giggling and laughing.”

-- Robin Rauzi

“Gross Me Out!” Saturday,

2 p.m., at Caltech’s Beckman Auditorium, 332 S. Michigan Ave., Pasadena. $12 adults; $7 kids. (888) 222-5832.