Shape shifters — When is something no longer itself?

Join Molly and Carl as they valiantly attempt a world record sailing around the globe on their boat, the Theseus. Faced with a constant need for boat repairs, they are forced to confront a perplexing question: how many changes can you make to something before it's no longer the same thing it started out as? South Wagga Public School: Noah, Lucas, Jasmine, Hunter, Olivia