Vocabulary #9 (The outer Solar System)

Definitions:

1. comet: a ball of ice that orbits the Sun
2. meteroid: a small asteroid (rocky object that orbits the Sun), wich may be far out in the solar system or close to the inner planets
3. meteor: a meteroid that enters Earth's atmosphere and burns with streak of light
4. meteorite: any part of a meteoroid that reaches Earth's surface

Sentences and illustrations:

1. Comets come from the outer fringes of the solar system.

2. Meteoroids are often called small asteroids.

3. We usually see the meteor as a bright streak of light.

4. Meteorites are usually classified into three types.