Why does the Earth have seasons?

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Across
  1. 3. The Earth takes 365 days to travel around the sun.
  2. 6. An imaginary line that passes through the center of the Earth around which it spins.
  3. 7. When __________ sunlight hits the surface of Earth, the light is scattered and not absorbed well; not straight.
  4. 8. The path followed by a planet, moon, or other heavenly body as it travels around another body.
  5. 10. The most _________is absorbed when the rays of sunlight are directly striking Earth.
  6. 15. The term for when the Earth moves around the sun.
  7. 16. _________ sunlight has more energy in a given area because the surface of the Earth facing the Sun is tilted towards the Sun; straight.
  8. 17. Seasons are not related to this because when this is the longest the Northern Hemisphere is in summer.
  9. 19. The _________ cycle is the term for the path that the moon travels.
Down
  1. 1. The term for when the Earth spins around its axis.
  2. 2. Stands for equal (around March 21st and September 21st).
  3. 4. An imaginary line around the middle of the Earth, at an equal distance from the North Pole and the South Pole.
  4. 5. One half of a sphere or globe.
  5. 9. The Earth takes 24 hours to spin on its axis.
  6. 10. The Earth travels around the Sun in this kind of path.
  7. 11. Any round object that has a surface that is the same distance from its center at all points such as a ball or globe.
  8. 12. To slant or tip.
  9. 13. Stands for longest (around June 21st and December 21st).
  10. 14. The reason the clock goes clockwise is because that is the direction the _________ travels through the sky in the daytime.
  11. 18. Another term for autumn.