The chemistry students learned a little bit more about fissionable material like uranium-235. They also learned about the nuclear chain reaction needed to release tremendous amounts of energy from a relatively small amount of material.
The AP Biology students didn't do too much because so many students were gone. However, we did find time to discuss the evolution of a strain of drug resistant tuberculosis. It's kind of scary because a strain of multi-drug resistant TB (MDR-TB) is present in the United States now.
PS - Jenna Hinkle was super funny during the rally. I almost started crying I was laughing so hard.