Across
- 3. this is no longer a planet as of 2006, making neptune the only planet visible to the naked human eye
- 5. the only planet that is not visible to the naked eye
- 7. the 4th planet from the sun, named after the roman god of war
- 9. gas giant, very cold with an average temperature of -352 farenheit
- 10. closest planet to earth that has a ring, 6th planet in the solar system
Down
- 1. second planet from the sun, earth's closest planetary neighbor
- 2. the 5th planet from the sun, the biggest planet in the solar system
- 4. closest planet to the sun
- 6. the planet we live on
- 8. largest star in the solar system