Made with Clip-Short
Why Earth Has Seasons
An engaging explanation of why Earth's 23.5-degree axial tilt, rather than distance from the Sun, drives the seasons.
The idea
Explain why Earth has seasons: its axis is tilted about 23.5 degrees, so for half of the year the northern hemisphere leans toward the Sun and gets more direct sunlight and longer days, and for the other half the southern hemisphere does; it is not the distance from the Sun, because Earth is closest to the Sun in early January, during the northern winter. Show the tilt and the numbers on screen. Curious, clear narration.
What the video says
In early January, Earth is actually closest to the Sun. But the northern hemisphere is frozen in winter. If distance made the seasons, January would be summer. The real reason? Earth leans. Our planet is tilted at twenty-three point five degrees. And that tilt stays the exact same as we orbit the Sun all year. For six months, the top half tilts toward the Sun. You get direct sunlight and long summer days. Six months later, the southern hemisphere gets the direct heat. When your side tilts away, sunlight hits at a weak angle. The warmth spreads out thin. It's not about how close we are to the Sun. It's how we face it.