Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how


911 facts and definitions

Bin Laden Leader of al-Caeda , planned 911 attack
911 When hijackers crashed plane into the world trade center on September 11,2001
Hijacked Illegally seize ( an aircraft or vehicle ) in transit and force it to go to a different destination or use it for ones own purposes
Hijacking Type of network security attack in which the attacker takes control of a communication
Pentagon The pentagonal building serving as the headquarters of the us department of defense, near Washington DC.
Twin towers They were the tallest buildings in new your before the 911 attack
Al-Caeda A radical Sunni Muslim dedicated to the elimination of a western presence in Arab countries and militantly opposed to western foreign policy
Aircraft An airplane, helecopter or other machines capable of flight
Created by: Braydenstarcher