Across
- 3. the gravitational system where the planets orbit together
- 7. how earth and the moon go around each other and the sun
- 8. the only planet that has life
- 9. planet that lays on its side
Down
- 1. an imaginary line that passes through the North and South Poles of earth
- 2. biggest planet in the solar system
- 3. A star that is a light and heat source for us
- 4. a planet known for having rings
- 5. reflects life off of the sun
- 6. a red planet