Introduction What happens when you press a switch and your fan turns on? Or when you plug in your phone to charge? You’re using electricity—one of the most important forms
Introduction Have you ever wondered why a big ship floats on water while a small stone sinks? Why does an empty bottle float but a full one sinks? This happens
Introduction Have you ever stood in front of a mirror and seen your exact image looking back at you? Or dropped a spoon into a glass of water and noticed
Introduction Have you ever noticed how sound travels from your friend’s mouth to your ears? Or wondered why sound moves slower than light? Whether it's the voice of your teacher,
F Introduction Have you ever wondered why your arms feel tired after carrying a heavy school bag? Or why machines make our life easier? Or even how electricity bills are
Introduction Why does everything fall down and never up? Why does a ball roll down a slope but not up by itself? Why do we stay on the ground instead
Introduction Have you ever been in a moving car that suddenly stopped? You feel your body jerk forward, right? Or maybe you’ve kicked a football and watched it roll across