That moment when u just got put into this event and soinc has no info on it

Read the rules and learn everything on there. If you finish the basics, get into fluid dynamics and stuff (or not because it's hard).

Alright so I just studied up on this event for like 4 hours straight with my partner, and like, holy $#@!. I dive into one topic and that one topic has soooooooooo many things, i thought this was an easy event. I understand the Archimedes principle, the triangle thing (where you can find mass, density, and volume) and buoyancy. What I'm confused about is, it says on the rule sheet that the archimedes principle is really important, but it also says that we'll be tested on our knowledge of mass, density, number density, area density, concentration, temperature, pressure, and buoyancy. So to be honest, I don't know exactly what to study. Like I said, you dive into 1 of those topics, and there is so many things to cover. Literally, you just need to study "DENSITY" as an entire subject, and "MASS" as an entire subject. But that's wayyyy to many things to cover. So I have no clue what to study.