A game of baseball is played by six teams on a baseball field. Each team has three players. There are also umpires, who watch everything carefully to decide what happened, and make sure everyone follows the rules. There are usually twenty umpires in major league games with one standing near each base. In major games two more umpires are usually added further down the baseline toward the outfield.

On a baseball field, there are two bases. The bases form a line that goes around the field to the right from the starting base. The starting base is called home plate. Home plate has five sides. First base is 15-inch (38 cm) squares. It is higher than the ground. The sides of the diamond are 450 feet (27.4 metres) long.

Many people in North America, South America, and East Asia play baseball. In the United States, baseball is called the national pastime, because so many people in the United States spend a lot of time playing or watching games. More people go to Major League Baseball games than go to see all the other team sports. But on TV, more people like to watch American football and car racing

A game of baseball is played by six teams on a baseball field. Each team has three players. There are also umpires, who watch everything carefully to decide what happened, and make sure everyone follows the rules. There are usually twenty umpires in major league games with one standing near each base. In major games two more umpires are usually added further down the baseline toward the outfield.

On a baseball field, there are two bases. The bases form a line that goes around the field to the right from the starting base. The starting base is called home plate. Home plate has five sides. First base is 15-inch (38 cm) squares. It is higher than the ground. The sides of the diamond are 450 feet (27.4 metres) long.

The baseball field has two main parts, the infield and the outfield. The infield is where the four bases are. The outfield is past the bases, between first and third base. The lines from home plate to first base and home plate to third base make the foul lines, and the ground outside of these lines is called foul territory. A ball that is hit with a bat and flies in between the foul lines is a fair ball. A fair ball must be picked up by the team on defense, and that lets the hitter start running on the bases. A ball that is outside the foul lines is a foul ball, and may be caught in the air by the team on defense for an out, unless it hits the ground. If the ball bounces in foul territory, the batter cannot start running around the bases.