1. How many passenger planes were hijacked on September 11?

2. What year did the September 11 attacks take place?

3. What terrorist group did the hijackers represent?

4. Who was the U.S. president during the attacks?

5. What new cabinet department was formed to help stop future attacks?

6. What buildings in New York City collapsed from the attacks?

7. What happened to Flight 93?

8. True or False: Hundreds of firefighters and police died trying to rescue people.

9. How many people were killed in the attacks?

10. What building did Flight 77 crash into?