Read the excerpt from "Light Bulb Moment." "Yeah, I thought that listening to lectures during sleep would be a great way to study while giving students the added bonus of more free time. As you can see, I am now failing three classes AND I am grounded,” Jake said, shaking his head. He looked at the floor and muttered, "I am finished with science, Stan. I’m glad we’re heading to junior high next year, so I can start something new. Maybe I could be something new, too, like an artist.”

According to this excerpt, what causes Jake to give up on science?