Why are airplane windows round instead of square? What makes toothpaste stripes appear in perfect lines? And how does a lock know when to turn?
This third book in the Interesting Facts for Curious Kids series reveals the hidden science of everyday things. From zippers and tea bags to door locks and robots, familiar objects and ideas are explained through physics, engineering, chemistry, and logic.
With over 200 pages of detailed facts and clear explanations, kids will discover how the world really works. And after every chapter, a quiz makes learning interactive and helps important ideas stick.
Inside you'll explore:
Vision and perception - why we see what we see.
Underground forces - what lies beneath the surface of our world.
Life before electricity - how people cooked, traveled, and lived in the dark.
Smart machines - how robots learn to follow commands.
Before books - how humans shared knowledge without writing.
Everyday science - the hidden rules behind bottles, buttons, pressure, insulation, and motion.
Perfect for ages 8-12, this book is designed for curious readers who enjoy learning how things work. Every fact is real, research-based, and explained in a way that makes science fun and memorable.
About This Series: Interesting Facts for Curious Kids Ages 8-12
This series includes 5 books, each one exploring a different theme-from animals and inventions to ancient history, strange science, and the secrets of our planet. Every fact comes with a clear explanation, and every chapter ends with a quiz to turn curiosity into discovery.