Description Episode 1: When Spring Flowers Bloom (p.08) - Why do we feel so sleepy in spring? Episode 2: Amy's Special Makeup (p.16) - Why do we get pimples? Episode 3: Spring, Cherry Blossoms, and Runny Noses (p.24) - Why do our eyes water and noses run when pollen is in the air? Episode 4: Chew, Bite, Taste, Enjoy! (p.32) - Why do cavities form? Episode 5: Unexpected Social Distancing (p.40) - Why does sweat smell so musty? Episode 6: I Wanted to Avoid the Sun (p.48) - Why does skin get darker in the sun? Warm-up Quiz #1 (p.56) Episode 7: Please Get Out of My House! (p.58) - Why do mosquito bites itch? Episode 8: The Great Ghost Panic of Summer Night (p.66) - Does watching scary movies really cool you down? Episode 9: Throbbing! Ice Cream Headache? (p.74) - Why does eating cold food give you a headache? Episode 10: Is Eu-ddeum a Fool or a Genius? (p.82) - Does a bigger head mean higher intelligence? Episode 11: The Culprit Is in Here! (p.90) - Why do we have fingerprints? Episode 12: You Gotta Unclog It to Survive! (p.98) - How does a plunger unclog a toilet? Warm-up Quiz #2 (p.106) Episode 13: What Is That Suspicious Powder? (p.108) - Why does grimy skin residue form on our bodies? Episode 14: The Blazing Air Conditioner Expedition (p.116) - Why do people get "air conditioning sickness"? Episode 15: In a Cave Where Stars Shine... (p.124) - Why are caves cool even in summer? Episode 16: The All-Black Fashion I Can't Give Up (p.132) - Does wearing black clothes make you hotter in summer? Episode 17: The Saltiest Showdown in the World (p.140) - Why is seawater salty? Episode 18: I'm at the West Sea at Night (p.148) - Why do tides come in and go out? Warm-up Quiz #3 (p.156) Curiosity Level Up (p.158) Special Certificate of Praise (p.163)