Volume 12 of 'Tomorrow's Experiment King,' an educational comic series that conveys difficult scientific principles and terms to children in an easy and fun way through the exciting experiment stories of elementary school students. This volume covers various scientific principles related to air, including liquid nitrogen experiments, brain cells and respiration, changes in molecular motion speed with temperature, Charles's and Boyle's Laws, the definition of lift, gas diffusion experiments, and creating fragrance through ester reactions. From the 6th grade elementary textbook units 'Properties of Gases' and 'Various Gases' in the first semester, and 'Weather Forecasting' and 'Comfortable Environment' in the second semester — covering the nitrogen cycle, various gases in daily life, types of winds blowing on Earth, Earth's atmosphere, and air pollution — to middle school textbook content such as sound resonance experiments using tuning forks, iron oxidation reactions, and the law of conservation of mass, this book presents core curriculum content in an exciting way through the characters' competitions. The information pages also explain difficult scientific principles alongside hands-on experiments, such as making a straw atomizer using air pressure, making a mini fire extinguisher, liquid nitrogen experiments, and gas diffusion experiments using BTB solution — giving readers the experience of conducting the experiments themselves while reading. The book also includes a wealth of related knowledge and scientific facts, such as Graham's Law, creating fragrance through ester reactions, the principle of the boomerang, changes in molecular motion speed with temperature, and playing beakers using the natural frequency of substances. Episode 1: The Universe's New Strategy Science Points: Liquid nitrogen experiment, making liquid oxygen, the nitrogen cycle Home Experiments: Making a straw atomizer using air pressure, making a mini fire extinguisher Episode 2: The Secret of the Battle of Red Cliffs Science Points: Brain cells and respiration, iron oxidation reaction, types of winds on Earth Scientists Who Changed the World: Antoine Laurent Lavoisier Episode 3: Special Training for Hypotheses Science Points: Changes in molecular motion speed with temperature, Charles's and Boyle's Laws Science in Everyday Life: Gases in Daily Life Episode 4: The Invisible Movement Science Points: Sound resonance experiment using tuning forks, playing beakers using the natural frequency of substances Science Lab Experiments: Liquid nitrogen experiment Episode 5: Eric's Choice Science Points: Gas diffusion experiment using BTB solution, Graham's Law, creating fragrance through ester reactions Experiments in the Competition: Gas diffusion speed Episode 6: The Force That Cuts Through Air Science Points: The principle of the boomerang, the definition of lift Experiment King's Key Notes: Air Surrounding the Earth — the Atmosphere; Air Pollution Threatening the Earth