Our Solar System

12345678910
Across
  1. 5. An object that orbits a star, is large enough to have become rounded by its own gravity, and is large enough to dominate or impact those within its orbit.
  2. 7. A celestial object consisting of a nucleus of ice, rock and dust; when near the sun, a "tail" of gas and dust particles form pointing away from the sun.
  3. 8. A natural phenomenon by which all things with mass or energy, including planets, stars, galaxies and even light, are attracted to (or gravitate toward) one another.
  4. 9. The remnants of a comet, asteroid or planet that has broken free and is floating around at extremely high speeds in space.
  5. 10. A huge group of single stars, star systems, star clusters, dust, and gas bound together by gravitational attraction.
Down
  1. 1. A large cloud of dust and gas in space from which solar systems are formed.
  2. 2. A unit of measurement used to describe distances between celestial objects, equal to 3.26 light years.
  3. 3. A dark area of gas on the sun's surface that is cooler than surrounding gases.
  4. 4. Any of numerous small solid celestial bodies composed of rock and metal that move around the Sun.
  5. 6. The distance that light travels in one year; about 9.5 trillion km or 5.8 trillion miles.