Rotation Vs Revolution

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Across
  1. 5. the force that keeps planets in orbit around stars
  2. 6. when a planet is closest to its star
  3. 9. this planet takes 163.7 years to orbit the sun
  4. 10. earth spins on its axis
  5. 12. when a planet is furthest from its star
Down
  1. 1. the measure of how elliptical a shape is
  2. 2. earth moves around the sun
  3. 3. another word for when planets revolve around a star
  4. 4. a day on this planet is 9 hours 50 minutes and 30 seconds long
  5. 7. the not-quite-circular shape planets take as they orbit around stars
  6. 8. a scientist who had 3 laws about orbits, eccentricity and gravity
  7. 11. earth’s is tilted at an angle of 23.5 degrees