→ The occurrence of day and night can be demonstrated using a globe and a torch in a darkened room.
→ The globe represents the Earth, and the torch simulates the Sun.
→ When the torchlight shines on the globe, only one side of the globe is illuminated, indicating daytime on that part of the Earth.
→ The opposite side, which is not lit by the torch, experiences nighttime.
→ As the globe is slowly rotated, different areas move into and out of the light, replicating Earth’s rotation on its axis.
→ This rotation causes a continuous cycle where locations on Earth transition from darkness to light, resulting in the cycle of day and night.
→ The Earth’s approximately 24-hour rotation period defines the length of a day-night cycle, and the axis of rotation passes through the North and South Poles, influencing how different regions experience daylight and darkness.