Football is a sport in which players run and pass the ball around a field to try and score points. It is played at a professional level all over the world.
There are three parts to the game: offense, defense and special teams. The goal of the offense is to move the ball over the opposition’s “end zone” and into their “end zone”. To do this, the quarterback throws a pass or hands it to a runner (running back, fullback, or wide receiver) who then runs towards the end zone.
The opposing team tries to stop the offense by rushing them on the ground, tackling them in the air, or by defending their quarterback. Once the offense has been tackled, a play ends with a sack, interception or fumble.
A sack occurs when a defensive player pulls off the flag of a quarterback behind the line of scrimmage. Once a sack is made, the quarterback cannot pass the ball until the defenders have removed their flags.
When a play is over, the referee blows his whistle. The next play begins where the last one ended and continues until either team is able to move the ball 10 yards. If they do, the play is called a first down and the other team receives the ball and has four downs to move it 10 yards or more.
A touchdown is 6 points; a field goal is 3; a two-point conversion is 2; an extra point is 1; and a safety is 2. There are also penalties and free kicks, which can be awarded to the team that commits the foul.