Tilting Changes the Seasons
As the Earth’s axis tilts, the angle of the sunlight striking Earth changes. This causes seasonal changes in temperatures around the globe.
As the Earth tilts away from the Sun, the Northern Hemisphere receives more sunlight and higher temperatures. This is the summer season in the Northern Hemisphere and the winter season in the Southern Hemisphere.
As the Earth tilts towards the Sun, the Northern Hemisphere receives less sunlight and lower temperatures. This is the winter season in the Northern Hemisphere and the summer season in the Southern Hemisphere.