Across
- 1. this planet has the longest rotation period of any planet in the Solar System
- 4. the second-smallest planet in the Solar System, after Mercury
- 5. a giant planet with a mass one-thousandth that of the Sun
- 7. the seventh planet from the Sun
Down
- 2. the eighth and farthest known planet from the Sun in the Solar System. In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet
- 3. a gas giant with an average radius about nine times that of Earth
- 4. the smallest and innermost planet in the Solar System
- 6. the _______ or otherwise known as the World is the third planet from the Sun and the only object in the Universe known to harbor life
