Across
- 5. the largest planet in the solar system.
- 6. the only known planet that supports life.
- 8. the farthest planet from the sun.
- 10. a big ball of frozen ice that orbits the sun.
- 11. a small rocky body orbiting the sun.
- 12. the force of attraction that keeps everything together.
- 16. the planets closest to the sun.
- 18. a hot ball of gases, our sun is one of them.
- 20. the seventh planet from the sun.
- 21. the start all the planets revolve around.
Down
- 1. an hole with so much gravity light cannot escape.
- 2. the planets furthest from the sun.
- 3. named after the roman god of war.
- 4. the galaxy which our solar system is in.
- 7. small rock in outer space, smaller than an asteroid.
- 9. the natural satellite of earth
- 13. the fastest planet in our solar system.
- 14. the sixth planet from the sun.
- 15. the smallest planet in our solar system.
- 17. was once a planet but now is considered a dwarf planet.
- 19. stars, planet, dust, and rocks all held together.