Description: A thrilling science invention comic series created by the writing team behind 'Tomorrow's Science King.' Through everyday inventions, kids learn scientific principles while building creative thinking skills. Centered around the Gosu Elementary School Invention Class first introduced in Volume 2 of 'Tomorrow's Science King,' this series vividly portrays charming characters as they turn their witty ideas into reality through thrilling invention competitions. In Volume 12, 'Invention Flea Market,' readers naturally encounter scientific concepts through the creation of inventions such as a 'laundry basket' using ventilation tunnels, a 'multi-mirror kaleidoscope' using light reflection and mirrors, and a 'magnetic frying pan handle' using magnets. The book is also carefully structured to reinforce key concepts from the elementary science curriculum, including the properties of mirrors from the 3rd-4th grade unit 'Mirrors and Shadows,' light reflection from the 6th grade unit 'Light,' and friction and elasticity from the middle school 1st grade unit 'Force and Motion,' boosting overall learning effectiveness. Chapter 1: Tug-of-War with Friction! Invention Point: Friction, properties of silicone, the sense of smell. Home Experiment: Friction of rice grains, the relationship between weight and friction. Chapter 2: The Meaning Behind a Sudden Question. Invention Point: Swing doors and spring hinges, various types of sensors. Inventions That Changed the World: The invention of paper. Chapter 3: Our Neighborhood Flea Market. Invention Point: Idea generation methods—divergent and convergent thinking. Everyday Inventions: Air and invention. Chapter 4: We Need a New Idea! Invention Point: Household wastewater and water pollution, the importance of market research. Invention Report in the Comic: Eco-friendly hanji scrubber. Chapter 5: The Secret Behind a Hit Product. Invention Point: Reflection of light, the principle of the kaleidoscope, concave and convex mirrors. Cha Jeong-su's Invention Diary: A combined multi-mirror kaleidoscope. Chapter 6: Tomorrow's Renovation King. Invention Point: Why optical illusions occur, static electricity, elasticity. Key Notes: Idea generation methods. A flea market has opened in Science World! What's the secret to becoming the Flea Market King with a hit product? Just after finishing their tough midterm evaluations, Invention Class B faces a new challenge—the flea market! Fired up with ambition to make it big, they prepare their inventions, but the public's response is lukewarm at best. To make matters worse, they're left discouraged watching other teams show off catchy products and clever sales strategies. But they can't give up now! After a series of twists and turns, Class B teams up with a new partner and unveils a brilliant new idea. Will they finally claim the title of Flea Market King?