The key idea behind the demonstration is to show the movement of the Earth that results in certain astronomical and natural phenomena. The presenters explain the seasonal changes in the appearance of the night sky, the reasons for seasons of the year, and the changes of the length of sunlight exposure in different parts of our planet, and show the phenomenon of polar days and nights at the Earth's poles. They talk about the daily movement of the celestial sphere and about the apparent movement of the sun in the sky.

The live demonstration is conducted by presenters of the Heavens of Copernicus (only in Polish). Recommended for elementary school pupils.