Description: A full-on competitive science invention comic series newly created by the writing team behind Tomorrow's Science King. Through everyday inventions, this comic teaches scientific principles while nurturing creative thinking. Centered on the Invention Club of Gosu Elementary School (who first appeared in Volume 2 of Tomorrow's Science King), the story vividly follows its charming main characters as they turn witty ideas into reality through thrilling invention competitions. In Volume 13, 'Living Without Electricity and Water,' readers follow the creation of inventions such as a solar-powered 'Light Ball,' an eco-friendly 'Water Purification Tank' that separates mixtures, a 'Rainwater Recycling Landscape System,' and a 'Spinning Wick Candle' that applies the science of candles—naturally introducing scientific theory along the way. The book is also carefully structured to reinforce key elementary science curriculum concepts, including the properties of magnets (3rd grade, semester 1: Using Magnets), separating mixtures by particle size (4th grade, semester 1: Separation of Mixtures), water and daily life (4th grade, semester 2: Changes in the State of Water), and heat transfer (5th grade, semester 1: Temperature and Heat)—boosting learning effectiveness. Chapter 1: One Night, Two Days Without Electricity or Water (p.8) Invention Point: Blackouts, the principles of nuclear power Explore at Home: Convection in gases and liquids Chapter 2: The Secret of Power Consumption (p.32) Invention Point: Magnetic fields, how induction cooktops and microwaves work Inventions That Changed the World: Nuclear Power Chapter 3: The Nightmare of a Bathroom Without Water (p.60) Invention Point: Water usage per person, convection, water purification principles Inventions in Everyday Life: Water and Invention Chapter 4: We Need a New Idea! (p.88) Invention Point: Household wastewater and water pollution, the importance of market research Invention Report in the Comic: Eco-Friendly Hanji Scrubber Chapter 5: A Gift from Nature—Energy (p.120) Invention Point: Standby power, energy self-sufficient villages, ecological restrooms Sinilryu's Invention Diary: Saving Water and Using Rainwater Chapter 6: We're the Judges?! (p.146) Invention Point: Water-saving sinks, solar-powered lighting, rainwater-recycling planters Key Notes: Future Energy Resources The six surviving teams face an outrageous mission: survive one night and two days without electricity or water?! Having claimed the title of Flea Market King at the flea market held in Science World, Invention Class B rides their winning momentum into the fourth competition! Their assigned theme this time: 'Living Without Electricity and Water.' With no time to be shocked by the bizarre challenge, they must join forces and somehow make it through the night. But before they can even think about inventing anything for the competition, they must first figure out how to cook without electricity and secure water for drinking and washing... Will they be able to overcome this crisis and complete their mission successfully?