Episode 1: When Autumn Comes… … .08
Why do leaves change color in autumn?
Pros and Cons of Wearing a Mask Episode 2: 16
On days with severe fine dust, do I really need to wear a mask?
Episode 3: Is the weather today sunny or rainy? 24
How does the weather bureau know tomorrow's weather?
Episode 4: This is ridiculous! I'm bald! 32
Will acid rain make you bald?
Episode 5: Stormy Night 40
Why do we see lightning and then hear thunder a little later?
Episode 6: Hoo~, What's That Appearing in Winter? 48
Why do we have steamy breath in winter?

Warm-up Quiz 56

Episode 7: Oh, It's Cold! Why Is There Water Here?! 58
Why does water form on windows in winter?
Episode 8: Euteum's Special Winter Delicacy 66
Is it okay to eat snow that falls from the sky?
Episode 9: Exciting Winter Sports! 74
Why are icy roads slippery?
Episode 10 I hope it doesn't reach you... ... .
82
How do you get a cold?
Episode 11: Grow Up, Eyebrows! 90
If I shave my eyebrows, will they grow thicker?
Episode 12: Who Will Win the Fart Battle?! 98
Why do we fart?

Warm-up Quiz 106

Episode 13: I'm Going to Get a Bodybuilder Too! 108
Why do I feel sore the day after working out hard?
Episode 14: Ugh, what's wrong with my face?!! 116
Why does my face get puffy when I eat ramen and then go to bed?
Episode 15: Surviving the Highway 124
What happens if you keep holding in your poop?
Episode 16: This Time It's Real! It's Real! 132
Why do I have cramps in my arms and legs?
Episode 17: What's the Secret to Rapid Growth? 140
Mom, if Dad is short, will I be short too?
Episode 18: I Can't Sleep! 148
Why does our nose run?

Warm-up Quiz 156
Curiosity Level Up 158
Special Commendation Award 163

Are you dying of curiosity? I'm dying of curiosity!
18 scientific curiosities encountered in everyday life
Did you know that many of the popular myths believed to be true have not been scientifically proven? The popular belief that "acid rain causes baldness" is often accepted as fact, but the link between acid rain and hair loss has not been scientifically proven.
In Volume 2 of "Common Siblings' Common Curiosities," we've collected 18 curiosities about the weather, food, our bodies, and physiological phenomena that we've all wondered about at least once in our daily lives, such as "Why are icy roads slippery?", "Why do we fart?", and "What happens if you hold in your poop?"

Perfectly linked to elementary science curriculum!
Satisfy your curiosity with our informative pages!
You can learn various scientific knowledge related to elementary science curriculum through the information pages inserted at the end of each episode.
In addition, we provide more diverse information through short sections such as 'Common Science Knowledge', which explains basic scientific concepts related to curiosity topics, and 'Short Curiosities', which introduces useful tips related to real life.


Scientific knowledge in your head!
I'm also a curiosity doctor with the common siblings!
Rather than simply listing scientific information, it is structured so that young readers can naturally learn core concepts while enjoying a variety of activities.
In the 'Warm-up Quiz' corner inserted once every six episodes, you can learn the key concepts learned in the text by solving simple quizzes such as the initial consonant quiz, the four-headed quiz, and the line-connecting quiz. In the 'Curiosity Level Up' corner inserted at the end of the book, you can review the content learned in the text as a whole by solving fun, four-option multiple-choice questions.
As you read the comics and solve the problems, the scientific information in the text will become ingrained in your head without you having to memorize it.

The one and only award in the world!
Nyaha Curiosity Solver Special Commendation Award
At the end of the book, there is a one-of-a-kind award in the world.
This is a special commendation award given by the Nyaha Curiosity Solution Group.
After solving all 18 curiosities through "Common Siblings' Common Curiosities," you can write your name on the award and grow your sense of accomplishment.