Solar System
Across
- 6. is a spiral arm of our galaxy is a spiral arm of our galaxy.
- 8. astronomical object luminous
- 12. It is a rock a little smaller than the size of a planet.
- 13. is the second planet of the sun
- 15. is a solid piece of debris from an object, such as a comet, asteroid
- 16. This is no longer considered a planet
- 17. planet closest to the sun
- 18. the only planet with life
- 21. the layer that covers the planet
- 22. our solar system is part of this galaxy
- 24. third largest planet in our solar system
- 25. It is an imaginary line that joins the two geographic poles of the planet.
Down
- 1. It is a spherical region that extends from the Sun to 16.3 light years
- 2. planet furthest from the sun
- 3. largest planet in our solar system
- 4. is an interstellar cloud roughly 30 light-years across, through which the Solar System is moving
- 5. is a celestial body made up of dust, rocks, and ice particles
- 7. force that keeps a planet moving in orbit
- 9. It is a circumstellar disk of the solar system that lies between the orbits of Mars and Jupiter.
- 10. It is a celestial body that orbits around a planet.
- 11. covers 70 percent of the Earth's surface
- 14. a star and the planets orbiting around it
- 19. its Earth's only natural satellite
- 20. the planet with a ring
- 23. "the red planet"
- 26. The largest star in the Solar System