Across
- 3. The "red planet." Has a thin atmosphere.
- 6. A very cold planet. Looks blue because of its atmosphere.
- 8. The center of our solar system.
- 9. Known for its visible rings
Down
- 1. The largest planet. Has enormous storms.
- 2. Rotates on its side. A cold planet.
- 3. Revolves around the Earth in about 27 days.
- 4. The smallest planet. Has a lot of craters.
- 5. The hottest planet. Also known as "Earth's Twin" due to its similiarities.
- 7. The only planet we know of that can support life.