Across
- 1. the fuzzy outer layer of a comet
- 3. can be more than 100 million kilometers long
- 8. stretches out more than 1,000 times the distance between the sun and neptune
- 10. often called shooting stars
- 12. chunks of rock or dust smaller than asteroids
- 13. loose collections of ice, dust, and small rocky particles
- 14. believed to be the largest dwarf planet so far
- 15. extends to about 100 rimes earth's distance from the sun
Down
- 2. a region of the solar system between mars and jupiter
- 4. meteoroids that pass through the atmosphere and are found on Earth's surface
- 5. the solid inner core of a comet
- 6. rocky objects, most of which are too small and too numerous to be called planets or dwarf planets
- 7. what the dwarf planet that orbits beyond neptune is also called
- 9. the amount of tails that a comet has
- 11. is both a dwarf planet and the largest asteroid