6Chapter 6: The First Challenge: Speed Trials
19Chapter 19: The Magic of Energy Transformation
7Chapter 7: Friction’s Sneaky Power
20Chapter 20: The Puzzle of Perfecting Proportions
8Chapter 8: The Great Friction Race
21Chapter 21: The Art of Problem Solving
9Chapter 9: Gravity’s Pull
22Chapter 22: The Power of Collaboration
10Chapter 10: Bouncing with Gravity
23Chapter 23: The Magic of Imagination
11Chapter 11: The Mystery of Inertia
24Chapter 24: The Future of Inventions
12Chapter 12: The Puzzle of Pendulums
25Chapter 25: The Inventor’s Legacy
13Chapter 13: The Power of Potential Energy
26END
