Whats the difference between a meteor, comet, and asteroid? Does one have water and the others dont?

Answer 1

A meteoroid is just a small asteroid. A comet is an asteroid in a highly elliptical orbit that has enough volatile material in it to make a coma (which is the visible cloud evaporated material that makes the head of the comet and which can get blown back by the solar wind to make a tail) when it gets close enough to the Sun.

Answer 2

An asteroid is basically a large chunk of rock that orbits the sun along a similar plane and distance as a planet. Asteroids are smaller than planets and usually irregular in shape. They are incapable of holding any kind of atmosphere. When small pieces of rock from space enter earth's atmosphere, they are then called meteors. They are usually visible as they burn up coming into the atmosphere.

Comets are refer ed to as "dirty snowball" as they are composed mostly of water. They travel in large, elliptical orbits that go well beyond the planetary limits. As they approach earth, the sun warms up the ice and it releases as vapor, causing the comet's "tail."

Answer 3

Actually none of them contain liquid water.

When a piece of space rock enters a planet's atmosphere, it vaporizes, thus creates a glowing trail which we usually call meteor or shooting star.

Asteroids are those rocks that floating between Mars and Jupiter. They are relatively big so sometimes called minor planets.

Comets are traveling space rocks that have a nucleus and a tail created by solar wind. They may contain solid water (ice) but mostly solid CO2.