The Planets

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Across
  1. 4. the most distant planet that can be seen with the naked eye.
  2. 7. known as the "Red Planet".
  3. 8. the largest planet in the universe.
  4. 9. takes approximately 365 days to orbit the sun.
Down
  1. 1. was the first planet found using a telescope.
  2. 2. is hotter than Mercury despite being further away from the Sun.
  3. 3. the energy created is nuclear fusion.
  4. 5. The Coldest Planet in the Solar System.
  5. 6. no longer officially considered a planet.
  6. 7. closest planet to the sun.