Physics Q1C2 Student Name _____________________________

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Across
  1. 4. A German astronomer best known for his laws of planetary motion.
  2. 8. The closest planet to the Sun.
  3. 11. The model of the Solar System promoted by Nicholas Copernicus.
  4. 13. The farthest planet from the Sun.
  5. 15. Has the coldest planetary atmosphere in the Solar System.
  6. 16. The Second largest planet in the Solar System
Down
  1. 1. A comet which is expected to be visible from Earth in 2061.
  2. 2. The second most explored planet in the Solar System.
  3. 3. The shape of a planet’s orbit.
  4. 5. A moon of Jupiter that is larger than the planet Mercury.
  5. 6. The first dwarf planet in the Kuiper belt to be discovered.
  6. 7. The second largest known object in the Solar System.
  7. 9. The direction of a celestial object from the observer, expressed as the angular distance from the north or south point of the horizon to the point at which a vertical circle passing through object intersects the horizon.
  8. 10. The second brightest object in the night sky.
  9. 12. The largest of the rocky planets orbiting the Sun.
  10. 14. A moon of Saturn that is larger than the planet Mercury.