Schools on tv have a lot of stuff my school never had.

Not sure if these things are just American or fictional.
  1. Model UN
    Is this a real thing?
  2. Science fairs
    Does not seem to resemble an actual fair in any way, where is the cotton candy?
  3. Cheerleaders
    This definitely can't be real.
  4. Debate team
    The arguing club? I could get into that.