Robert Pattinson accepting the award for Choice Drama Movie Actor at last year’s Teen Choice Awards. (Matt Sayles/AP)

The Teen Choice Awards — the annual ceremony that honors the best in entertainment, as determined by high schoolers who tend to be obsessed with “Twilight” — airs live Sunday night at 8 on Fox. Understandably, you have questions about this big event. And Celebritology has answers, via a revised edition of the Teen Choice Awards primer published in the blog last year.

How can I be sure that teens are really determining the winners of the Teen Choice Awards?

Great question. In years past, winners have been determined via online votes that could technically have been cast by people of any age. (Honestly, though, what are the odds that your 75-year-old grandmother spearheaded the effort to elect Kristen Stewart and Robert Pattinson the winners in the Choice Movie Liplock category?)

This year that changed. The rules of the awards show now stipulate that vote casters must be between the ages of 13 and 19 as of June 29, 2011, and a registration process ensured that was the case. Before voting closed, I entered my 30-something birth date as a test, and the Teen Choice Awards Web site indeed deemed me ineligible to vote.

Right, but couldn’t someone technically lie about his or her age?

Well, sure. But no one ever offers false information about themselves. Especially not on the Internet!

Who is hosting the Teen Choice Awards? And, in a related question, if I don’t know who the host is, does that mean I’m not young and cool enough to watch the Teen Choice Awards?

Answer to the first question: Kaley Cuoco, star of “The Big Bang Theory.” Answer to second question: Possibly, although “The Big Bang Theory” does air on CBS, the only network whose core viewers may be old enough to remember when the Big Bang actually occurred. So you’re probably cool enough.

Is the Teen Choice Awards that show where celebrities get slimed?

No, that’s the Nickelodeon Kids’ Choice Awards, which was held in April. The Teen Choice Awards is the one where all the trophies look like surfboards. Please. Do your research.

Will vampire-oriented films and TV shows dominate the proceedings?

Indeed they will. “The Twilight Saga: Eclipse” is nominated for eleven awards and TV’s “The Vampire Diaries” scored nine nominations. As a betting woman, I’d guess that either “Twilight” or “Vampire Diaries” will win in most of their categories. The coveted trophy for Choice Vampire — which features nominees Robert Pattinson (“Twilight”), Ian Somerhalder (“Vampire Diaries”) and Alexander Skarsgaard (“True Blood”) — will be a tough call, however. Oh, and in case you feel that all this focus on vampires is in some way biased, don’t worry. MTV’s “Teen Wolf” also received some nominations.

Are there for-your-consideration campaigns for the Teen Choice Awards?

No. But The Situation of “Jersey Shore” fame has been campaigning relentlessly on Twitter for votes in the Choice TV: Male Reality/Variety Star category. Apparently he really wants it this year.

Time out: Will Justin Bieber be at the Teen Choice Awards?

He will. He’s nominated for five awards. His girlfriend Selena Gomez, who is nominated for six awards and is scheduled to perform, will be there, too. Astute analysis of their attendance at the event — or at least shouts of “OMG, she’s not good enough for him!” — will be extensively tweeted

When the Teen Choice Awards ends, should I be sad that the final silly awards show of the year has come to an end?

Oh, lord no. The MTV Video Music Awards will take place on Aug. 28, in a mere three weeks. So there is, indeed, something to look forward to.