I have to get my science textbook before im late!!!
I know the answer!
Margot is now on earth, this is her school the kids are nicer here on earth but that's because life is easier when you can see the sun almost every day and take it for granted.
Margot starts to learn that not everything is easier on earth because when she was on venus she would most likely have everything ready for class, but on earth she would have to go back and forth to her locker in order to get her stuff
Margot is more open and joyful now that she is on earth because she has the sun and she can make more friends. She starts to enjoy all of her subjects and excel in school.