The primary objective in American football is to score more points than the opposing team. Points are scored by advancing the ball into the opposing team's end zone, either by carrying it or passing it.

Each team in American football has 11 players on the field at once.

The quarterback is the position responsible for throwing the ball in American football.

The wide receiver is the position responsible for catching the ball in American football.

The running back is the position responsible for carrying the ball in American football.

The defensive back is the position responsible for defending against the pass in American football.

The end zone is the area at the end of the field where points are scored in American football.

A touchdown is worth 6 points in American football.

A field goal is worth 3 points in American football.

A safety is worth 2 points in American football.

The referee is the official who signals the start and end of plays in American football.

The umpire is the official who keeps track of the score and time in American football.

The head linesman is the official who lines up on the line of scrimmage and signals when a foul has occurred.

The down judge is the official who stands behind the line of scrimmage and signals when a down has ended.

The side judge is the official who signals when a player is out of bounds.