Reasons for the Seasons

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Across
  1. 1. The Half of the Earth that is South
  2. 5. The half of the Earth that is North
  3. 11. The motion around another object.
  4. 17. Sunlight in which the path of light from the sun to the plant is a straight line.
  5. 19. The sunlight's position during the winter months
  6. 20. A whole 365 days.
Down
  1. 2. The sunlight's positions during the summer months
  2. 3. The Northern end of the Earth
  3. 4. Occurs when something in the path of light from the sun diffuses
  4. 6. The place we live on
  5. 7. The angle a planet's rotation axis makes with the plane of its orbit.
  6. 8. The curved path through which objects in space move around a planet or star.
  7. 9. The measure of hotness or coldness expressed in terms of any of several scales, including Fahrenheit and Celsius
  8. 10. The Name of the North Star.
  9. 12. How far Earth's axis is tilted.
  10. 13. The Star above the North Pole
  11. 14. Each of the twelve named periods into which a year is divided
  12. 15. An imaginary line about which a body rotates.
  13. 16. The thing the Earth revolves around
  14. 18. 24 hours beginning at midnight