Scale and Properties of the Solar System

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Across
  1. 2. This planet is known for its many rings
  2. 4. Stars are formed in stellar___________
  3. 7. Another term for "rocky"
  4. 9. Only the gas giants have molecular________ in their atmosphere
  5. 11. Pluto is now a _______ planet
  6. 13. As ________ improves, we continue to discover moons
  7. 16. The shape of our galaxy is a barred________
  8. 18. The "A" in AU stands for this
  9. 21. Asteroids are found in the Asteroid Belt and ______ Belt
  10. 22. The planet farthest from the sun
Down
  1. 1. The fifth planet from the sun
  2. 3. The planet closest to the sun
  3. 5. We are hoping to set up a base on this planet in the near future
  4. 6. Our galaxy's name
  5. 8. These types of stars may become a black hole
  6. 10. The only planet in the solar system known to support life
  7. 12. The inner planets have these types of cores
  8. 14. There are more than 100 billion of these in the universe
  9. 15. Small stars will become a white dwarf, then a ______ dwarf
  10. 16. The explosion that large stars experience toward the end of their lives
  11. 17. The outer planets all have__________
  12. 19. Chunks of ice, rock, gas, and dust
  13. 20. Reclassified in 2006