Physical appearence of the greek gods?

helloooo So I;m doing a project for social studies and I need to know a basic description of the greek gods appearences for Poseidon, Zeus and the other guy I just need like what the greeks though they looked like or whatever and I also would like thier things, like what they were kings of or whatever the hell you call it sorry for cheating off you but the assignments due monday THANK YOU A!!!