Across
- 3. Gases that surrounds a planet
- 5. The red planet
- 6. The smallest planet
- 7. Gases that surrounds a Mercury, Venus, Earth, and Mars
- 10. Repeatedly go around
Down
- 1. The hottest planet
- 2. Separates the inner and outer planets
- 4. "Earth Like"
- 8. Our Home
- 9. A celestial object that orbits a planet