Across
- 2. the force that holds the planets in their orbit
- 4. a rock that crashes into Earth's atmosphere
- 5. our planet
- 6. our sun is a ____
- 9. the path that a planet takes around the sun
- 10. the star at the center of our solar system
- 12. planet famous for its rings
- 13. Jupiter, Saturn, Uranus, and Neptune are ___ planets.
- 14. this planet is known as the red planet
- 17. the satellite that orbits Earth
- 18. planet between Saturn and Neptune
- 20. the planet closest to the sun
- 21. Mercury, Venus, Earth, & Mars are _____ planets.
Down
- 1. the largest planet in the solar system
- 3. one of the many rocks in a belt between Mars and Jupiter
- 7. something that Jupiter, Saturn, Uranus, & Neptune have
- 8. an icy rock that has a bright tail when it comes close to the sun
- 11. a hole in the ground caused by a meteor hitting a planet
- 14. our galaxy
- 15. layers of gas surrounding a terrestrial planet
- 16. planet known as the morning and evening star
- 19. the furthest planet from the sun