SOLAR SYSTEM QUIZ Test Your Knowledge Of The Solar System With These Quizzes Solar System Online Quiz for Kids and Adults #1. How many planets are there in our solar system? 7 9 8 12 Work Harder #2. Which one is the uppermost portion of the Sun’s atmosphere? Photosphere Chromosphere Radiative Zone Corona Work Harder Previous Finish Results Well Done. You Are Roaring Like A Lion Keep Working. Slow & Steady Wins The Race START NEW