Planets

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Across
  1. 3. The planet that is approximately 465 degrees Celcius
  2. 5. What Earth is primarily made of
  3. 6. A celestial object that orbits a planet
  4. 7. What Mars's atmosphere is primarily made of
  5. 8. Like Earth in some ways
Down
  1. 1. Jupiter, Saturn, Uranus, Neptune
  2. 2. Mercury, Venus, Earth, Mars
  3. 4. Made up of gasses that surround it
  4. 5. To move repeatedly around