Across
- 2. How many outer planets are there
- 4. A celestial body that revolves around a planet
- 7. This planet is the second closet to the sun
- 9. What do we call our solar system
- 10. Terrestrial Planets (2 Words)
- 13. What do humans have to wear in space (2 words)
- 14. This planet is the second farthest from the sun
- 15. A big star that every planet revolves around
- 16. A circular object in our solar system that revolves around the sun
- 17. What is the biggest planet in our solar system
- 18. Parts that work together
Down
- 1. A word that means livable
- 3. What protects Earth from radiation (2 words)
- 5. Gas PLanets (2 Words)
- 6. What do humans have to have to breathe in space
- 8. It holds our solar system together
- 11. What is the farthest planet from the sun
- 12. What is the closest planet to the sun
- 13. Spots all around the sun are called (2 Words)