Across
- 2. First planet in the solar system
- 5. Able to live on
- 7. Planets that are like Earth
- 10. Gases that surround a planet
Down
- 1. Moving repeatedly around
- 3. Second planet in the solar system
- 4. Planets that are between the sun and the asteroid belt
- 6. Fourth planet in the solar system
- 8. Third planet in the solar system
- 9. A celestial object that orbits around a planet