The events of 9/11 impacted the lives of all Americans yet many of today's students know little about what happened that day. Use this short activity to help your students learn about the events of that day without taking much of your classroom time. Included in this download is a 12-question multiple-choice worksheet for students to complete. Once they complete it, go over it with them. An answer key is included (with some additional comments). Care was taken to make this questionnaire informative but not scary.