Here's what meteoroids are:

Meteoroids are small rocky or metallic bodies that orbit the Sun. They are much smaller than asteroids, typically ranging in size from a grain of sand to a boulder.

Here's a breakdown:

* Origin: Meteoroids come from various sources, including:

* Fragments of asteroids

* Debris from comets

* Pieces of planets or moons

* Size: As mentioned, they vary in size, but generally are smaller than asteroids.

* Orbit: Meteoroids orbit the Sun, just like planets and asteroids.

* Meteor, Meteorite:

* When a meteoroid enters Earth's atmosphere, it heats up due to friction and burns, creating a streak of light known as a meteor (also called a "shooting star").

* If a meteoroid survives its fiery journey and hits the ground, it is called a meteorite.

Key points:

* Meteoroids are small space objects orbiting the Sun.

* They are the source of meteors and meteorites.

* They are not the same as asteroids, though they can come from asteroid fragments.

Let me know if you have any more questions about meteoroids, meteors, or meteorites!