Seasons

As the Earth rotates around its own axis, it creates day and night. But as it rotates around the sun, it also tilts at an angle of about 23.5 degrees. This means that different parts of the Earth get different amounts of sunlight at different times of the year, causing the seasons.

During summer in the northern hemisphere, the North Pole is tilted towards the sun, while the South Pole is tilted away, causing the northern hemisphere to receive more direct sunlight and be warmer. During winter, the situation is reversed. The amount of daylight in a day also changes with the seasons, being longest during the summer and shortest during the winter.