space objects

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Across
  1. 3. to small to be considered a planet
  2. 6. made up of gas
  3. 7. an object that orbits the
  4. 8. a rock that has hit earth
Down
  1. 1. small space rocks
  2. 2. a rock in Earth´s atmosphere
  3. 4. asteroids orbit on this
  4. 5. made up of ice and rock