I'm going to purposely stop my classmate from winning an award to try to make her cry.
I'm wondering what's making you decide to do such a horrible thing to your classmate?
Because she's such a snob.
It's mean-spirited to try to stop them from getting the award make them cry. Try being supportive of your classmate instead.
Since when did it become immoral to try to ruin someone else's day? Everyone likes to watch people cry or get mad. There's a good chance that the kid is emotionally fragile by trying to seek the affirmation of strangers.
You need to just try being a better person, because people are going to judge you harshly and think less of you instead of her if you go through with this. It honestly sounds terrible.