Space Crossword

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Across
  1. 2. Another name for the inner planets
  2. 3. Another name for outer planets
  3. 7. This planets period of rotation is longer than its period of revolution
  4. 9. Mixture of rock, ice, and dust, and orbit the sun in long elliotical orbits
  5. 10. Small rocky partical that moves through space
  6. 13. A meteoride that strikes a planet or a moon
  7. 14. On this planet they have a variety of life because of the moderate temperature range
  8. 15. A meteoroid that has entered earths atmosphere producing a streak of light
Down
  1. 1. Was once classified as a planet but now considered a dwarf planet
  2. 4. Chunks of rock and ice that never clumped together like the rocks and ice that formed inner planets
  3. 5. round depression formed on the surface of a planet
  4. 6. THe time it takes an object to complete one rotation
  5. 8. This planet is the least dense planet
  6. 11. The largest planet in the atmosphere
  7. 12. Smallest planet and planet closest to the sun