Across
- 2. a “dirty snowball” orbiting the Sun - a mixture of ices, frozen gases, rock and dust left over from the formation of the solar system
- 3. a single complete cycle around a point
- 5. the natural light of the Earth, visible by reflected light from the sun
- 9. a flattened circle or oval which the planets follow
- 10. one of the many small, rocky objects that orbit the Sun between the orbits of Mars and Jupiter, “minor planets”
- 11. a collection of billions of stars, gases, and dust that are part of the universe bound together by gravitational forces
- 12. one of the four planets beyond the asteroid belt
- 13. a glowing point in the sky that is a large body, like the sun
Down
- 1. a star, such as the Sun, and the planets and other bodies that are orbiting around it; region in space where these bodies move
- 4. a planet between the Sun and the asteroid belt
- 6. an imaginary line about which a body rotates
- 7. the movement of an object around another object
- 8. Way the galaxy that contains our Solar System
- 12. the path of a planet traveling around a star