Across
- 6. force of attraction between objects.
- 8. one of the objects in space that are made of burning gas and that look like points in the night sky.
- 11. go around another object.
- 14. matter and space that exists.
- 15. round massive object that orbits around a star.
Down
- 1. study of objects in space and their properties.
- 2. chunk of frozen gases, rock, ice, and dust that revolves around the sun.
- 3. Belt-The space between Mars and Jupiter in which most asteroids are found.
- 4. star around which the Earth orbits.
- 5. group of stars forming a recognizable pattern in the sky.
- 7. Planet-An object that orbits the sun, but is not large enough to be considered a planet.
- 9. path of one object in space around another object.
- 10. System-Earth, seven other planets, and the sun.
- 12. imaginary line around which Earth rotates.
- 13. cluster of stars, dust, gas, and matter.