Squash is a sport in which two players hit a ball with a racket (or Racquet). The aim of the game is to beat the other player by hitting the front wall and making the ball bounce twice on the floor before they can hit their turn, or for them to hit the ball out of play.
The ball is made of rubber. It is hollow. When it is warm (due to being hit many times) it bounces more. Balls are marked with different coloured dots. They are made to bounce at different speeds depending on the colour of the dots. Balls with two yellow dots are slow, while balls with one yellow dot are a little bit faster. Balls with green or white dots are average. Balls with red or blue dots are fast