Across
- 5. a streak of light caused by meteoroid
- 6. motion the backwards motion
- 9. oval shape orbit
- 12. measurement used to count distance between planets
- 13. rocky debris creating colorful streaks of light
- 16. an object hurdling through Earth's Atmosphere
- 17. the 4 outer planets
Down
- 1. a phase of hydrogen in which it behaves like an electrical conductor
- 2. orbiting sphere that is not a planet
- 3. the 4 inner rocky planets
- 4. ice/rock that orbits the sun
- 7. the name for a meteorite once it hits Earths ground
- 8. an area outside the 4 inner planets
- 10. scientific name for planets
- 11. the habitable ____
- 14. deviation of a curve or orbit from circularity.
- 15. the area in space behind the outer planets
- 18. a steep cliff