Most meteoroids are smaller than a grain of sand. Meteoroids hit the Earth's atmosphere at super high speed, about 130,000 miles per hour. Meteors usually last just a second or two. Sometimes people get comets and meteors mixed up. A comet is different from a meteor.
Comets are balls of ice that orbit around the sun.
When comets come close to the warm sun, some of the dusty ice changes into dusty gas. The gas and the dust form a tail that we can see from Earth. Unlike meteors, which zip across the sky in a few seconds, comets travel slowly across the night sky. You would have to watch one for hours or days to see its movement. Comets are not the same thing as meteors, but the dust that comets leave behind is what causes meteors.