Planets

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Across
  1. 2. Smallest planet in the Solar System and closest to the sun
  2. 3. Third planet from the sun and the only astronomical object is known to have life.
  3. 4. The largest in the Solar System
  4. 8. They have compact and rocky surfaces
  5. 9. Has bright and beautiful rings that circle its equator.
Down
  1. 1. The coldest planet in the Solar System
  2. 2. The second-smallest planet in the Solar System
  3. 5. The only planet in our solar system not visible to the naked eye and the first predicted by mathematics before its discovery.
  4. 6. Planets that are made out of hydrogen and helium meaning they do not have solid surfaces
  5. 7. The hottest planet in our solar system.