Across
- 3. - A large glowing sphere of gas held together by its own gravity.
- 4. Axis - An imaginary line around which an object rotates or spins.
- 5. - A bowl-shaped hole that has been blasted out of a surface.
- 6. - A very small rocky object in space.
- 8. - A small rocky object that orbits the Sun. Not large enough to be pulled into a spherical shape.
- 10. Distance - The distance between an object and the body it is orbiting.
- 13. Period - The amount of time it takes for an object to complete one orbit.
- 14. Plane - An imaginary flat surface on which you could trace out Earth's path around the Sun.
Down
- 1. - Anything that is outside of Earth.
- 2. - A path that an object makes when it is traveling around another object.
- 7. Planet - Meets parts one and two of a planet definition, but not part three.
- 9. - An object that orbits a planet.
- 11. - The spinning motion of an object.
- 12. - This has the following properties: orbits the sun, has a large enough mass that its own gravity makes it spherical, and there are no other objects in its orbital neighborhood similar to its size.