What are the differences between a violin and a saxophone?

Well, first of all the violin is a string instrument while the saxophone is a wood wind instrument because it has a reed. Second, the violin is played with a bow (arco) or sometimes plucked (pizzicato), while the saxophone is played by the player blowing air into a mouth piece. Last, the Violin is an orchestral instrument while the saxophone is a band instrument. There are many other reasons as to what makes these instruments different, but these are a start...