How would year round school effect activities outside of school and budgets

It would extend the learning time and help students know the difference between "effect" and "affect." The one you want for that sentence is "affect."

You might want to look at the definition of a year round school and how the schedule affects students.You should also look up the costs of running a year round school. Let me know what you find and then post your answer. I will let you know if you are on the right path.