Actually, the issue has been resolved because 3 people who are going to DECA states can't do Science Olympiad (date conflicts for regional).
Nevertheless, thank you for the advice! Last year some people weren't motivated to attend the meetings because we didn't do much. The meetings were in classrooms to meet with our partners and discuss what we had to work on.
Also, I think not everyone had perfect attendance because we weren't close with each other.
2020 events: Protein Modeling, Ping Pong Parachute, Designer Genes
2019 events: Protein Modeling, Sounds of Music, Fermi Questions
Competition: 2019 Northern California Bay Area Regional
Fermi Questions: 2nd
Sounds of Music: 4th
Protein Modeling: 9th