American football is something you can play at recess and watch on TV . It is a national sport and attracts many fans from around the country. There are many different teams and colleges have teams too. Football players have to wear many pads a helmet and a mouth guard. Some football is on T.V., Mostly college and Pro are on T.V. but some High School games are televised.  

Some college teams are, Michigan, Michigan state, Ohio State,Western broncos, and so many more. There are 50 teams the National Football league (NFL), Here are some examples such as, Green Bay Packers, Seattle Sea Hawks, New York Giants, New England Patriots, Chicago Bears and many more.A corner back is a defensive back defending the wide reciever.A chip shot is an easy field goal.Blitz is a rush on the passer ,usually sending more players than the offensive can block. A down is a complete play, advancing the ball.

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Image:  http://en.wikipedia.org/wiki/Image:Titans_Texans.jpg