How does the Earth move?

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Across
  1. 4. This year is different because there is an extra day.
  2. 6. Each one has sixty minutes.
  3. 9. Things become warmer in this season and plants revive.
  4. 10. Things start to be colder here. It's between summer and winter.
  5. 11. In this moment we don't have any light.
  6. 15. A straight and imaginary line in which a body or geometric object rotates.
  7. 16. The natural satellite of the Earth.
  8. 17. The force of attraction that moves bodies towards the centre of a celestial body.
  9. 18. It's usually the warmest season of the year.
  10. 20. It's the same as "inclination", from the horizontal or vertical.
Down
  1. 1. Each one has three hundred and sixty-five days.
  2. 2. Each one has twenty-four hours.
  3. 3. They are caused by the axis tilt.
  4. 5. Change of the orientation of the Earth's axis.
  5. 7. The movement responsible for creating days and nights.
  6. 8. It's usually the coldest season of the year.
  7. 12. It's responsible for the notion of the years passing.
  8. 13. The moment when sun rays can reach the Earth.
  9. 14. We have two of them on Earth. They are very cold and distant from each other.
  10. 19. Huge celestial bodies full of heat, gases, energy and light.