Space and the Universe

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Across
  1. 4. The galaxy in which we live in.
  2. 7. This planet has a massive hurricane called the great red spot.
  3. 9. A group of planets that usually orbit a star.
  4. 12. How long it takes an object to spin once.
  5. 13. The dirty snowball of space.
  6. 14. This planet has the most moons in our solar system.
Down
  1. 1. The force that pulls all objects toward each other.
  2. 2. Usually given silly names and contains most stars and solar systems.
  3. 3. The tendency of an object to always want to go straight or stay at rest until acted upon.
  4. 4. The fastest orbiting planet in our solar system.
  5. 5. Contains many galaxies within.
  6. 6. The volcano planet.
  7. 8. A piece of asteroid that enters earth's atmosphere.
  8. 10. How long it takes an object to orbit the sun once.
  9. 11. A piece of asteroid lands on earth.