Across
- 3. body enters Earth's atmosphere as streak of light
- 4. small rocky body orbiting the sun
- 5. body lacking criteria to be small planet
- 8. shell of icy objects in solar system
- 10. center of earth to center of sun
- 11. orbital movement same as other bodies
- 14. rocky planet make of metals and rocks
- 17. ring orbiting dust or moonlets
- 18. icy bodies orbiting sun in Kuiper Belt
Down
- 1. center part of most cells
- 2. meteor that survives passage into Earth's atmosphere
- 6. all planets orbit sun counterclockwise
- 7. celestial object orbits Sun in an elongated path
- 9. planet made of gas and rocky core
- 12. nebulous envelope around nucleus of comet
- 13. circumstellar disc beyond planets
- 15. body that would become meteor if entered Eart's atmosphere
- 16. narrow tail of a comet