We will study nature. Nature science is called natural science. We will study land, water, air; we will study plants, animals, humans. It is not only necessary to study nature in order to know what is happening in nature. This is also necessary in order to understand how a person conquers nature with his work and uses it for his own purposes. After all, everything that we use in our life - various tools, food, clothing, housing - is made from what is mined in nature.