Description: Through thrilling experiment showdowns between charismatic main characters, this book clearly and entertainingly explains the scientific theories and terms found in upper elementary and middle school textbooks, while also covering core scientific principles — perfect for boosting children's curiosity and interest in science. In particular, the included 'Experiment Kit' allows kids to try out the science featured in the book firsthand, so they can see real learning results through hands-on experience rather than simple memorization. For kids who already love science, this book will be a great friend; for those who find science difficult, it will be like having a wonderful science teacher. Chapter 1: Like the Sun That Shines on Its Own Science Point: The Five Basic Simple Machines, Gears Experiment at Home - Tug-of-war Against Many People, Bouncing a Coin High Chapter 2: The Skill of Victory Science Point: The Effort Point, Fulcrum, and Load Point of a Lever, The Principle of the Wheel and Axle Scientists Who Changed the World - Jeong Yak-yong (丁若鏞) Chapter 3: The Final Match! Science Point: How Gears Work Science in Daily Life - Everyday Tools Chapter 4: The Spark of the Heart Science Point: How Elevators Work, The Principle of the Pulley Experiments in the Showdown - Wheel and Axle Experiment Chapter 5: What Time Changes Science Point: Comparing Movable and Fixed Pulleys, The Principle of the Inclined Plane Experiment in the Science Lab - Making Dominoes Chapter 6: Which Two Teams Will Go to the Olympiad? Science Point: The Principle of Work, Types of Tools Experiment King Core Notes - Work and Tools The Final Showdown on the Road to the International Experiment Olympiad! Which two teams will make it to the dream competition? It's the eve of the final match of the National Experiment Competition at Saebyeok Elementary! Their opponent is Mirae Elementary, riding a two-match winning streak and going from strength to strength. Everyone expects Mirae Elementary to be the clear favorite and assumes they'll win this match too, as they have all the others. Meanwhile, Uju overhears a conversation between Cheonjaewon and Heo Hong and believes he's discovered the secret to Mirae Elementary's success. He pushes the Saebyeok Elementary kids hard, forcing them into grueling experiment practice... On top of that, Bae Uri suddenly appears and reveals that the fate of every competing school hinges on the outcome of this match — and that Hanbyeol, Mirae, and Saebyeok Elementary, who are all neck and neck in points, could have their rankings flip with a difference of just 0.1 points. What result will Saebyeok Elementary achieve in this final experiment? And which two schools will move on to the Olympiad? The unyielding final experiment showdown on the road to the dream competition — the International Experiment Olympiad — begins now!!