Across
- 5. The four planets farthest from the sun are ___planets
- 7. The planet with rings
- 8. Moon's gravity affects the ocean's ______
- 11. Hole on surface of the moon or other planet
- 12. Planets orbit the sun because of the sun's ___
- 13. The ____ is a natural satellite of Earth
- 15. Name of our Galaxy
- 16. Group of stars that make a picture
- 18. The star closest to Earth
- 19. The tilt of the Earth gives us our _____
- 21. The smallest planet
- 22. The brightest planet; Earth's twin
Down
- 1. A continual path around the sun
- 2. The phrase for the sun & bodies that orbit it
- 3. The red planet
- 4. The largest planet; has a Great Red spot
- 6. Means suitable for life
- 9. The only planet that is habitable
- 10. The planet tipped on it's side
- 14. Moon reflects light of this
- 16. The sun is at the ___ of our solar system
- 17. The Earth continuously spins or rotates on it's ___
- 18. station scientists in space can live and work in this
- 19. When N.America is tilted toward sun,it's ___ season
- 20. Planet that takes longest to orbit the sun