Across
- 2. the safest planet in the world before earth
- 4. the most dangerous planet in the world
- 5. _______ is over 4.6 billion years old
- 7. the biggest planet in the world
- 8. how many people can earth support
- 10. which planet is green
- 11. what color is the sun
Down
- 1. the most powerful planet in the world
- 3. the strongest planet in the world
- 6. the coldest planet in the w
- 9. _______ is over 4.5 billion years old