Pink Unit Solar System Review

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Across
  1. 3. Kelper's Law that says planets move faster when closer to the Sun and slower when farther away, sweeping out equal areas in equal times
  2. 5. closest planet to the sun
  3. 6. model placing the Sun at the center of the universe
  4. 8. planet that is current focus of space exploration because of its similarities with Earth
  5. 10. Planet with an equator circumference of 40075
  6. 11. solar nebula collapses and the debris clumps together into baby planets
  7. 12. Geometric shape of planetary orbits, characterized by two foci and varying eccentricity.
  8. 14. Planet with 82 moons
Down
  1. 1. Planet with day length of 9.9 hours
  2. 2. planet with no moons and a very thick atmosphere
  3. 4. model placed Earth at the center of the universe with celestial bodies orbiting around it.
  4. 7. planet that rotates on its side
  5. 9. ice giant with an orbital period of 164.8 years
  6. 13. Measure of how elliptical an orbit is, ranging from 0 (circular) to 1 (highly elliptical).