Astroids are rocky and metallic objects that orbit the sun. The former astroid Ceres is now considered to be a dwarf planet. Astroids are mostly found in the astroid belt. A picture of a astroid is shown above . There are more then 600,000 astroids in the solor system. As for the 600,000 most of them are in the astroid belt.
Meteoroids are stony or metallic material traveling in outer space. They also travel around the sun in orbits. When they hit the Earth´s atmosphere they burn up.
Meteors are a streak of light that was formed from a meteoroid. They are sometimes called shooting stars or falling stars. About 3,000 metric tons fall to earth as dust per day. In pounds that would be 6,612lbs. These falling stars are easier to see at night as shown in the picture.
This is a picture of a comet. They are sometimes called as dirty snowballs. A comet has 4 diffrent parts as seen in the picture below.