A ball is a spherical (round), often bouncy, toy. These toys can have many uses, such as planets and stars for a solar system, objects hanging from a baby mobile, or be a test subject for your experiment in physics class. A ball can be made from a variety of materials, such as foam, Styrofoam, Play-doh/clay, rubber, paper,metal, and many more.
Many sports use balls such as football, soccer, basketball, volleyball, etc. some board and arcade games use balls such as SkeeBall,pinball.
A yellow ball with Sonic the Hedgehog on it