The best hook to grab the attention of 10 to 14-year-olds would be:
"What if I told you that you could make all of these places much more exciting with a simple piece of paper?"
This hook is engaging and relatable, as it connects everyday situations (like math class or a T-ball game) with the fun idea of making a paper airplane. It captures the readers' curiosity and encourages them to think about how something simple can enhance their experiences.