Rotation and Revolution

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Across
  1. 4. model of a solar system with the sun at the center
  2. 6. the direction of Earth's rotation and revolution
  3. 7. term to describe the amount of Earth's revolution completed after 183 days
  4. 8. a rocky object that revolves around a planet
Down
  1. 1. model where the sun revolves around the Earth
  2. 2. one object orbiting another
  3. 3. the amount of degrees Earth revolves around the sun in 1 day
  4. 5. also referred to as spinning