Unit 3 and 4 Vocab

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Across
  1. 4. a flying ball of rock or ice
  2. 5. the degree or path of an orbit
  3. 6. an object too big to be a asteroid but too small to be a planet
  4. 8. the apparent backwards motion of an planet or object
  5. 9. earth comes between the sun and the moon
Down
  1. 1. last 4 planets composed of gas with no true surface
  2. 2. area of asteroids beyond Neptune
  3. 3. planet first 4 rocky planets
  4. 7. area of asteroids between mars and jupiter