Astronomy Crossword Puzzle

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