10 Things I Hate About You (2009) - 1x05 - Don't Give Up

Determined to become an active environmentalist, Kat enrolls in shop class to convert her gas-guzzling car into a biodiesel vehicle. As the only girl in the class, Kat realizes that she needs to do more than fix cars to break the stereotype that girls can do anything boys can do. Will she be able to show the guys up in class, including Patrick Verona?
Meanwhile, Bianca becomes lab partners with Joey to raise his chemistry grade so he can play football. Her motivation to help him? Chastity promises Bianca the chance to take off her Penguin costume and give her a spot as a real cheerleader for Friday's game, if Joey plays. However, her task proves to be much more difficult than she originally thinks as, Joey has other ideas, believing he should pursue modeling over football.