HOW TO PLAY FOOTBALL

A football field is 120 yards long. On each end of the field is an end zone, and both of these are 10 yards long. The object of the game is to move the football into one of these end zones. Therefore, the field between the end zone markers is 100 yards exactly.The field is 53 and 1/2 yards wide. The out of bounds is marked by a white line, which is called the boundary marker, boundary line or out of bounds. When a player steps over this line, the play stops. Between the end zone lines, there is a yard line every five yards. Every other one of these yard lines is marked with a number, which from left to right read 10, 20, 30, 40, 50, 40, 30, 20, 10. These are used to count the distance from the center of the field towards either of the end zone lines.At the end of either end zone, there are goal posts. These post are 18.5 feet apart, and serve as targets for field goals and extra point attempts. Kicking the ball through these goal posts, also called uprights, yield 3 points for a field goal and 1 for an extra point. Each yard is also marked with a yard dash, which are called yard markets. These are used by referees, broadcasters and fans alike, to keep track of a team’s progress. When the game is played the the two teams that are playing each put out 11 players on the the field. 11 on offense and 11 on defense. The object of the offense is to try to run down field and score a touchdown. Meanwhile the deffense has to stop them from trying to score. The offense has four downs a drive. To keep the drive going the offense can get first downs which is every 10 yards. When the offense gets to fourth down and dont get a first down its called a turnover. Which the other team has to bring their offense out. On offense you can throw a interception in which the quater throws the football and a deffensive player catches the ball. There is also a fumble when somebody drops the ball both on offense and deffense. Penaltys are what refrees call when a player does something wrong. Penaltys include offsides, faultstarts, holding, unsportsman like, and many more. You win by whoever scores the most in the game. Thats the name of the game football.
QUOTE: "Some people think football is a matter of life and death. I assure you, it's much more serious than that."

SOURCES:

http://football.about.com/cs/football101/a/bl_football101.htm
http://www.footballbabble.com/football/rules/
 http://library.thinkquest.org/C0130702/footballrules.html
http://www.ducksters.com/sports/footballrules.php
http://homepages.cae.wisc.edu/~dwilson/rfsc/intro/