My science crossword puzzle.

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Across
  1. 2. the longest and shortest days of the year
  2. 6. the second-coldest season of the year, with an Equinox in it.
  3. 9. the hemisphere north of the equator
  4. 11. the places that are furthest north and south respectively
  5. 12. The different parts of the year, separated by the amount of sunlight in the hemisphere it is taking place in.
  6. 14. the planet we all live on
  7. 15. the star that The Earth orbits.
Down
  1. 1. days where sunlight is equal across the earth
  2. 3. the hemisphere south of the equator
  3. 4. the coldest season of the year, with the shortest day in it
  4. 5. the hottest season of the year, with the longest day in it
  5. 7. The imaginary line that The Earth spins on.
  6. 8. The two "halves" of the Earth, which are Southern and Northern.
  7. 10. an imaginary line that goes across The Earth, and has only one season.
  8. 13. The warmest season of the year, with an equinox in it