Google Forms lets you collect student information from quizzes, exit tickets, and surveys. But what about the students who don't finish in the allotted time? Did you know students can submit an incomplete form and finish it later? To allow multiple responses select these options in Settings on your Google Form:
You cannot have required questions on your quiz with the exception of name and email. Make sure students know to ignore the warning (You're editing your response) you get when the form is opened a second time. Check it out using this form!