Astronomy Crossword Puzzle

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Across
  1. 3. Occurs when the Northern Hemisphere is pointed away from the Sun
  2. 6. The layer of the Sun where the UV light is produced
  3. 8. The distance between the Sun and the Earth
  4. 9. The length of a planet's year is based on its ___ around the Sun
  5. 11. This moon phase occurs when the Moon is between the Earth and the Sun
  6. 13. An eclipses that occurs when the Moon is between the Earth and the Sun
  7. 14. If the Earth's tilt were increases, these would be more extreme
  8. 16. A collection of rocks located between the terrestrial planets and the gas giants
  9. 19. Solar systems from from this
  10. 20. The largest object in our solar system
Down
  1. 1. Day and night on Earth are caused by the Earth's ___
  2. 2. A lunar cycle lasts approximately one ___
  3. 4. If an object has a lower mass, its gravitational pull does this.
  4. 5. The force responsible for the formation of the solar system
  5. 7. This part of the Earth receives direct rays from the Sun year-round
  6. 10. One of the things that causes our seasons
  7. 12. The planets in our solar system that are really far apart
  8. 15. Changes depending on the gravitational pull of the planet
  9. 17. As two objects move toward each other, the gravitational force between them ___
  10. 18. The amount of the Earth that receives sunlight each day