Astronomy Crossword Puzzle

5. Pluto has a thin atmosphere primarily made of ______.
8. A group of visible stars form a pattern called a ____.
9. Which planet has more volcanoes than any other planet?
11. Which planet has the largest volcano in our solar system?
13. What is the reddish layer of the sun that is not visible to the naked eye?
17. The ______ is the outermost surface of the sun.
19. Which dwarf planet was once a planet but was later found to be a dwarf planet?
20. Venus is named after the ancient Roman god of love and ______.
21. The nearest start to Earth is called ______.
22. Pluto is named after the ancient Roman god of the ______.
23. Asteroids, comets, and ______ are all visible in the sky.
25. Mercury has no ______ which means there is no weather.
26. Which planet is surrounded by rings?

1. The atmosphere of Uranus is mostly ______.
2. Which planet has the most violent weather?
3. The areas on the sun’s surface that appear darker because they are of a lower temperature are called ______.
4. Saturn is named after the ancient Roman god of ______.
6. What is the coldest planet in the solar system?
7. Mars is the ______ smallest planet in the solar system.
10. What is the visible layer of the sun that is cooler than the outer two layers?
11. What is the fourth closest dwarf planet to the sun?
12. Which planet is closest to the sun?
14. The centre of the sun is called the ______.
15. What is the largest planet in the solar system?
16. Earth is the only planet that has ______ water on it.
18. Many stars come in pairs called ______ stars.
21. The large flares of energy that loop back to the sun’s surface are called ______.
24. What is the third closest dwarf planet to the sun?