This is our season 1 finale of "Why." We hope you have enjoyed the first 10 episodes, and maybe even learned something!

Part 1 (0:00): Dan was curious why we get addicted to things. Kind of a deep idea, but he has an answer!

Part 2 (16:08): Have you ever been startled by something and inadvertently screamed? Ever wondered why we scream? Chip has the answer!