Across
- 3. a hot sphere of glowing gases
- 6. first planet
- 7. hollow area or pit in the ground
- 9. June 20
- 10. suns most important gas
- 11. orbits the earth
- 13. 24 hours 1 spin
- 14. largest planet
- 17. imaginary line that a spinning object turns around
- 18. great dark spot
- 20. only planet where life exists
- 21. 1000s of shiny rings made of ice and rock
Down
- 1. The 8 planets, all their moons, the asteroid belt, and all the smaller objects
- 2. December 21
- 4. hottest planet
- 5. an object that moves in orbit around another larger body
- 8. 365 days 1 time around the sun
- 12. The invisible curved path that a planet travels along
- 15. shape similar to an oval
- 16. the red planet
- 19. rotates on a tilted axis