Ellipses and Our Solar System

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Across
  1. 2. When Earth is farthest from the Sun.
  2. 5. Earth is tilted on this.
  3. 6. name of the moon phase when the moon is mostly lit.
  4. 9. The tendency for an object to stay in motion in a straight line, unless changed by an external force.
  5. 13. When the Earth is between the Moon and the Sun and casting its shadow on the Moon.
  6. 16. name of the moon phase where the light is "shrinking".
  7. 17. The measure of how elliptical an orbit is.
  8. 19. name of the moon phase when only the dark side of the moon is facing Earth.
  9. 20. The path planets take around its star in an oval pattern.
  10. 21. Two points within an ellipse
Down
  1. 1. A natural phenomenon where all things with energy are brought toward one another.
  2. 3. When Earth is closest to the Sun.
  3. 4. name of the moon phase where only a sliver of the moon is lit up.
  4. 7. When the Moon is between the Earth and the Sun and casting its shadow onto Earth.
  5. 8. Earth's spin on its axis, also equal to 1 day.
  6. 10. name of the moon phase when the whole moon is lit up by the Sun.
  7. 11. A regular repeating path that one object in space takes around another.
  8. 12. name of the moon phase where the light is "growing".
  9. 14. The star that is at the center of our Solar System.
  10. 15. Earth and other planets going around the Sun, also equal to 365.25 days.
  11. 18. half of our Earth.