Women's soccer is in a different league to the men's soccer. Women use a soccer ball that is the same size as the men's soccer ball.
size 5
The size of a soccer ball does not depend on whether the game is played indoors or outdoors. In fact, it depends on how old the players are. If the player is approx. 4-8 years old they use a size 3, if they are approx. 8-12 years old they use a size 4, and if the player is 12+ they use a size 5, an adult size ball.
The heaviest will help you be use to playing soccer but for comfort I would recommend size 4 or 3
It isn't called soccer ball because the soccer ball is the ball you use in soccer. See? I have actually heard people call it soccer and soccer ball.
Children who are around the ages of U12-U13 may use size 4 or 5 balls, but if you are thinking of purchasing one I would recommend a size 5 to help practice. Children from the ages of U10-U11 use 3.
it is around the size 68-70 cm (about 27-28 inches) in diameter
Soccer you use your feet, volleyball you use your hands. In volley ball the ball is mostly in the air, and in soccer, the ball is mostly on the ground.
The Jabulani FIFA 2010 soccer ball
they use 6 inch balls
In some parts of the world, U12 players use full-size fields and goals. However, it is more common for smaller dimensions and fewer players to be present in youth games. In the United States, the official USSF recommendation is for goals to be 7ft high and 7yd wide, which is one less foot of height and one less yard of width than full-size goals required in the Laws of the Game.
As long as it's hexagonal like the rest, its okay. You can use a round ball like playground ball but if you want to play a real soccer game, then use the hexagonal balls. Dont use hard ball like basketballs. Also dont use balls that are not round like footballs. Use balls that are a reasonable size. No smaller than a hexagonal soccer ball. :D hope this helped