Description: A full-scale invention-battle science comic series newly created by the writing team behind Tomorrow's Experiment King. This invention comic helps kids learn scientific principles through everyday inventions while building creative thinking skills. In Volume 2, based on scientific theories such as the principle of inclined planes and the action of forces, the story follows the invention process of items like an umbrella with a waterproof pocket and a safety umbrella bag, introducing a variety of scientific theories found in school textbooks. Centered around the Invention Club at Gosu Elementary School, this book vividly portrays how charming main characters turn their witty ideas into reality through an exciting invention competition, showing every step of their hands-on effort. Through the process of the characters recognizing problems themselves and searching for solutions, the book explains various scientific theories and terms from upper elementary and middle school textbooks in an easy and fun way. Episode 1: The Map of Thoughts, Mind Mapping (p.8) Invention POINT - Basics of Mind Mapping Explore at Home - Drawing a Mind Map, How Geniuses Organize Their Thoughts Episode 2: Invention Begins with Inconvenience! (p.43) Invention POINT - The Invention Process of the Umbrella, Rediscovering Inventions Inventions That Changed the World - The Invention of Vinyl (Plastic Sheeting) Episode 3: The Transformation of the Umbrella Packer (p.72) Invention POINT - The Safety Umbrella Bag Inventions in Everyday Life - Rainy Day Inventions Episode 4: The Rusty Umbrella Rib (p.98) Invention POINT - The Umbrella with a Waterproof Pocket Invention Report from the Comic - The Safety Umbrella Bag Episode 5: The Umbrella Wearing a Corrugated Tube (p.130) Invention POINT - Uses of Corrugated Tubing, Definition of Center of Gravity On Yu-han's Invention Diary - Was This All an Invention? Episode 6: An Unexpected Invention Battle (p.162) Invention POINT - The Instant Wet Umbrella Dryer, Power Consumption Core Notes - The Science Behind Umbrellas The school invention competition has finally begun! But both teams have chosen 'umbrellas' as their theme?! Jo Ye-na, the leader of the Gosu Elementary Invention Club, proposes an invention battle in order to win back Han Dae-beom, who had quit the club. On Yu-han, an invention newbie who gets unwillingly caught up in the competition, can hardly believe he's suddenly become a member of Invention Team B overnight—but Han Dae-beom seems completely unbothered, whether he understands Yu-han's feelings or not. Soon, an announcement for an invention contest themed 'Inventions for a Rainy Day' is posted, drawing the attention of the entire school as both invention teams begin their preparations. After repeated failures, Team B invents an umbrella fitted with a plastic corrugated tube to solve the problem of wet umbrellas! But Team A, aiming to solve the same issue, unveils an 'Instant Wet Umbrella Dryer'.... Using recycled materials, will Team B be able to compete with Team A's invention, which even includes an automatic sensor? Watch the thrilling invention battle unfold around various scientific theories related to 'umbrellas,' and cheer on Team B's endless challenge on their way to becoming the Inventor King! Invention Kit: Lightning Bolt Making -> Rain Gauge Making Due to the implementation of the KC (Korea Certification) mark requirements, the contents and components of the invention kit have been updated. Please refer to the invention kit guide inside the box to assemble your kit.