Draw Comet and Asteroid 13.02.2020

Asteroid: a large rocky body in space, in orbit around the Sun.
 Meteoroid: much smaller rocks or particles in orbit around the Sun. 

Meteor: If a meteoroid enters the Earth's atmosphere and vaporizes, it becomes a meteor, which is often called a shooting star
 comet -

A comet is an icy, small Solar System body that, when passing close to the Sun, warms and begins to release gases.This produces a visible atmosphere and sometimes also a tail.