How to Close an Application on an iPad
When you open an application on your iPad, that application stays running until you manually close it, sapping processing power from your tablet. Using the "Home" button to exit the application only minimizes the window. If you want to truly close the item, you must access the iPad's hidden application management menu. Once opened, you can view your currently running applications and close unwanted items.
Power on your iPad if necessary.
Double-click the iPad's "Home" button. A list of currently running applications appears on the bottom of the screen.
Press and hold down on any application icon until a "-" symbol appears on each icon.
Touch the "-" on the application you wish to close.