Across
- 3. planet with a thin atmosphere
- 4. Mercury is the *blank* planet in the solar system
- 7. this planet was named by an 11-year-old girl
- 9. Meteoroids come from the Greek word, meteor, that means suspended in the *blank*
- 10. planet that is called Earth's twin
- 15. referred to as "dirty snowballs"
- 17. Jupiter has more than *blank* moons
- 18. Saturn could *blank* in water
- 20. The famous moon, *blank*, is the only one with its own magnetic field
- 21. planet that is more than twice as massive than all the other planets in the solar system combined
- 24. its unknown how old these planet's rings are
- 26. scientists claim that over 4 billion of these fall into Earth daily
- 27. Venus is the *blank* planet
Down
- 1. planets Eris is the most massive of these
- 2. Io is the most volcanically active body in the solar system, it's one of these
- 5. Neptune is whipped by *blank* winds
- 6. this planet is slightly larger than Earth's moon
- 8. some become moons of planets
- 11. Eris is the most *blank* dwarf planet
- 12. Uranus is the only planet that spins on its *blank*
- 13. only planet with liquid water on the surface
- 14. first planet located through mathematical calculations
- 16. Pluto has a *blank* shape on its surface
- 18. Comets have *blank* components
- 19. Ceres is the *blank* asteroid
- 22. rotates at a nearly 90 degree angle
- 23. Mars is known as the "Red Planet" due to high levels of *blank* minerals
- 25. only known planet inhabited by *blank* things