Meteoroid: A small particle from a comet or asteroid orbiting the sun. It becomes a meteorite if it survives its passage through Earth’s atmosphere and lands on Earth’s surface.
Meteor Shower: An event where many meteors enter Earth's atmosphere in a short period, often resulting from Earth passing through debris left by a comet.
Asteroid Belt: The region between the orbits of Mars and Jupiter where most asteroids in our solar system are found.