Across
- 3. When a planet makes one full spin
- 4. When the planets move around the Sun
- 6. When one object moves around another object in space
- 7. A large, round object that travels around a star
Down
- 1. A rocky object that is smaller than planets and orbits the Sun
- 2. A group of objects in space that orbit a star
- 5. An icy object that orbits the Sun with a "glowing tail"