Across
- 1. imaginary line Earth turns on
- 3. Planet closest to the Sun
- 4. Uranus and Saturn have these
- 6. Jupiter, Saturn, Uranus, Neptune
- 8. huge ball of gas that gives off light, heat, and other energy
- 11. System of stars, galaxies, planets, moons
- 12. The Earth is between the Sun and Moon
- 15. large body of rock or gas
- 16. When the moon is between Sun and Earth
- 17. Mercury,Venus, Earth, Mars
- 20. the force that keeps planets in orbit
Down
- 2. Sun,9 planets, and other bodies that orbit the sun
- 3. orbits around Earth
- 5. A group of stars
- 7. The path Earth follows are the Sun
- 9. largest planet
- 10. Earth's twin planet
- 13. Earth's star
- 14. huge group of stars held together by gravity
- 15. dwarf planet
- 18. One turn of Earth's axis
- 19. Our planet