Across
- 2. planets Most terrestrial planets are these because they are closer to the sun
- 4. This planet has two tiny moons, Phobos and Deimos
- 7. The closest planet to the sun
- 8. Has shown Pluto has blotchy regions of light and dark surface
- 11. Planet with elliptical orbit
Down
- 1. of Earth
- 3. Red surface
- 5. The smallest, colder planet
- 6. This planet has a thick atmosphere
- 7. Dry, hot and airless planet
- 9. Definite signs of life
- 10. Pluto has a small moon called