Why do the poles experience six months daylight?

The poles experience six months of daylight and six months of darkness because of the Earth's tilt on its axis. As the Earth orbits the Sun, different parts of the planet are tilted towards or away from the Sun. When the North Pole is tilted towards the Sun, it receives more direct sunlight and experiences daylight for longer periods of time. During this time, the South Pole is tilted away from the Sun and experiences darkness for longer periods of time. Six months later, the Earth's position has reversed, and the South Pole is tilted towards the Sun, experiencing daylight for longer periods of time, while the North Pole experiences darkness for longer periods of time.

To summarize, the Earth's tilt on its axis causes the amount of daylight and darkness experienced at the poles to vary throughout the year, resulting in six months of daylight and six months of darkness at each pole.