Hello, i am new to this website so hopefully im doing this right:)

 THis year I will be the head coach to a 7th grade girls team and i will be holding try outs in November. My question since 7th grade is sometimes the students first year playing on a team what kind of drills and things to i go over during the week of try outs?
do i seperate the days by defense drills than the next day offensive drills. how much conditioning do i do for 7th grade. This is going to be a challenge for me because i dont know how much skill the girls will have at this age. thanks for your help!