Across
- 4. Largest Planet in Solar System
- 6. relating to the sun
- 7. one of a planet's natural satellites,
- 8. Third planet from Sun
- 9. Planet with most Moons
- 13. to turn around a center point, or axis,
- 14. the attractive force of a body.
- 17. small object moving around a larger object.
- 18. a person who travels in space.
Down
- 1. the path an object moves around another object
- 2. body an object that is located in outer space
- 3. a spherical object that orbits a central star
- 5. Seventh planet away from Sun
- 7. Closest planet to sun
- 10. planet a space body too small to be called a plane
- 11. Fourth planet from sun
- 12. the motion of one object around another.
- 15. Furthest planet from sun
- 16. second planet from Sun