Across
- 5. Only inner planet with one moon
- 6. Small, rocky particle that moves through space
- 7. Largest dwarf planet
- 9. Time it takes an object to complete one rotaion
- 11. Made of gas, dust, and ice
- 12. Surface is a reddish color
- 13. Hottest planet in the solar system
- 14. Plantes made of hydrogen and helium
- 15. Once was a planet but now a dwarf planet
Down
- 1. Four largest moons of Jupiter
- 2. Meteoroid that strikes a planet
- 3. Small, rocky object
- 4. Time it takes an object to travel once around the sun
- 8. Planets made of rock and metal
- 10. Forms when a large meteorite strikes