The Planets

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Across
  1. 2. -------- of the sun is responsible for keeping the planets in orbit
  2. 5. planet called the morning/evening star
  3. 7. Closest planet to Earth
  4. 8. A star at the center of Solar system
Down
  1. 1. A day is ------- than a year on Venus.
  2. 3. Earth Spins on it
  3. 4. smallest moon in the solar system
  4. 6. Planet has highest density