Solar System

3. The 8th planet from the sun and the coldest
4. The 4th planet from the sun, also known as the "Red Planet" because of its red-orange appearance
8. The four ice and gas planets farther from the sun
9. A natural force that pulls to objects toward one another
12. The region beyond Neptune containing many small ice bodies, including dwarf planets
14. The 6th planet from the sun with a series of rings around it made primarily of ice
16. The time it takes for an object to complete one full spin around its own center

1. A large body in space that orbits a star and does not produce light on its own
2. The 5th planet from the sun and the largest of all planets in our solar system.
4. A natural object that revolves around a planet (Earth has only one)
5. The Sun and the planets and other objects that orbit it
6. A path of an object as it circles around another object in outer space
7. The 3rd planet from the sun and the only planet in the solar system where life is known to exist
10. The four rocky, terrestrial planets closest to the sun
11. The 7th planet from the sun, sometimes called the "sideways planet"
13. A dwarf planet located past Neptune in the Kuiper belt, demoted from planetary status in 2006
15. The 2nd planet from the sun and the hottest planet in the solar system