Across
- 2. the second planet from the sun.
- 5. objects in the solar system however are so far apart.
- 6. the inner planets mercury,venus,earth, and mars.
- 7. the fourth planets from the sun.
- 9. the high temperatures.
- 10. Earth has a period of one day.
Down
- 1. Earth's has a period around one year.
- 3. is the closed to the sun.
- 4. come from the outer parts of the solar system.
- 8. a dwarf planet orbit of planets do.