Across
- 1. the burning up of a chunk of rock and metal pulled into the atmosphere
- 2. number of planets as of 2006
- 5. group of stars forming a picture
- 7. planet with water and one moon
- 8. everything that exists including energy, matter and space
- 10. another name for the inner planets
- 12. at the center of our solar system
- 14. chunk of rock and metal pulled down through the atmosphere
- 16. chunk of frozen material travelling in large orbits around the Sun
- 18. astronomical event when the earth blocks out the moon
- 19. time it takes for a planet to do one full revolution around the sun
- 20. number of stars in our solar system
Down
- 1. when the chunk of rock and metal hits the earth
- 3. any object that exists in space
- 4. paths that planets travel in
- 6. another name for a moon
- 9. when the moon is not out
- 11. time it takes for a planet to rotate once on its axis
- 12. astonomical event when the moon blocks out the sun
- 13. planet with no atmosphere but that has craters
- 15. the study of everything beyond the Earth
- 17. another name for the outer planets