~6 week chick identification help

[barsad0]

My daughter got some chicks from a school project. They ordered a straight run breeders choice so it’s anyone’s guess on what they are. Anyone want to take a shot at identifying and sexing them?

 

[nuthatched]

The whites are male, grays are female, likely mixed breeds

 

[Iluveggers]

I would guess female, male, male, male, female, female, based on comb growth.