Across
- 1. the number of seasons that Mercury has
- 4. our planet
- 5. now called a dwarf planet
- 7. closest star to earth
- 9. our galaxy
- 11. planet between mars and Saturn
- 13. a comets tail points ________ from the sun
- 14. a force that keeps a planet moving in orbit
Down
- 2. Sunlight takes ____ minutes to reach Earth
- 3. the fastest moving planet in the Solar System
- 6. oval shaped path taken by a planet around the sun
- 8. the red planet
- 9. planet closest to the sun
- 10. The Milky Way is known as a ____ galaxy
- 12. Jupiter is known as a ______ giant
- 15. It takes one ____ for the Earth to complete its orbit around the sun.