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