Hello Larissa! I am having the same issue trying to find interactive learning opportunities for my 6th graders. I will be getting into cells towards the end of the year, around March or so, but I am trying to get a game plan for it now to prepare. When I was in school we created a cell out of food, but I have been told that is a no-no now in the education world. As I am student teaching, this is the time I am using to find what does and doesn't work.
I hope you found resources that helped you in through this unit!