Across
- 3. what planet is known as the “red planet”
- 6. what is the largest planet in our solar system
- 8. how many outer planets are in our solar system
- 9. what do astronauts wear in space
- 11. what is the coldest planet in our solar system
Down
- 1. what is the hottest planet in our solar system
- 2. true or false: the sun is a star
- 3. what is the smallest planet in our solar system
- 4. how many planets are in our solar system
- 5. BONUS: who made this crossword puzzle
- 7. can humans breath in space
- 8. how many inner planets are in our solar system
- 10. how many rings does Saturn have