| H.S. senior's course |
| Tough H.S. science course |
| Sitcom set in a high school |
| High-level H.S. science class |
| Difficult high school sci. course |
| Sitcom set in a H.S. science class |
| H.S. class for a future doctor, maybe |
| H.S. science class for college credit |
| H.S. science course for college credit |
| H.S. class whose topics include heredity |
| Science class for ambitious H.S. students |
| High-level high school science class, briefly |
| Challenging H.S. subj. where students might study glycolysis |
| Challenging H.S. subj. where students learn about the Krebs cycle |