- What If You Fell Into a Pool of Aerogel?
- What If You Stopped Brushing Your Teeth?
- What If the Arctic Turned Into a Megaslump?
- Discussed: What If We Were on Lockdown for the Entire Winter? - with Dr. Norman E. Rosenthal
- What If You Were Attacked by a Giant Squid?
- What If the Moon Exploded?
- Discussed: What If Matter Was Replaced by Antimatter? - with Liz Landau | Episode 17
- What If Terror Crocs Were Still Alive?
- What If the World Is Only Your Illusion?
- What If Octopuses Are Aliens from Outer Space?
- Discussed: What If an Octopus Was Your Teacher? - with Pippa Ehrlich | Episode 16