Across
- 2. Known as the red planet
- 5. The first planet
- 8. Earth, Mars, Mercury, and Venus
- 9. The hotest planet
- 10. Earth like
Down
- 1. the sky of the planet
- 3. the opposite of outer
- 4. goes around something
- 5. a celestial object that orbits around a planet
- 6. the opposite of inner
- 7. We live on it