According to topdocumentaryfilms.com, it's episode 5, How Did We Get Here? See the link below and check it out.
a worm!! If you are talking about astronomy, then nobody knows! A wormhole links one part of space-time with another. So the answer might be an alternate universe.
You have to name the episode in the question, otherwise, How do we know what episode you are talking about?
Talking scientists as distinct from engineers, they would be physicists and chemists
If you are talking about Prince of Tennis, it is episode 54.
Episode 4x08- Wishful Thinking.
I know what episode you're talking about, but I don't remember what episode that was.
The 100'th episode special
I think you're talking about the episode Nevermore.
It depends which Mew Mew episode you are talking about. If your talking about the Japanese Tokyo Mew Mew series then no, there are only 51 episodes.
Well, I think you're talking about the episode "Mindbender". It's episode 25.
If you are talking about the episode of Sonic X where they are filming at a castle, the Episode is "Season 1, Episode 19: Sonic's Scream Test"
He doesn't. The closest thing you could be talking about is the episode, "From Method To Madness"