No teacher response.
Human nature is always interested in various researches all his life. (how can "human nature" be "interested" in smth? what is "all his life"? For the "nature", the pronoun should be its. Very confusing sentence, what does it mean?)
In general, they (who?) can perform their gained skills (skills are not performed) when they grow up. In fact, in early ages (?) people can develop interesting solutions in their fantasy world. On the other hand, children and adults neither have experience that can make (whose?) dreams (+come) true nor have condition(s) or opportunity (I guess adults do have some experience). However, several challenging and ambitious spirit (several and spirit do not match in the number) of researchers can perform (wrong verb) their ideals in advance.
In this sense, the fantasy world of secondary school (what is it?) is very important because, especially in this age, they learn how to produce (find?) solutions to the (delete it) problems at every stage of life.
That's why it's important to realize the potential of these active brains in the appropriate research environment and take their excitement into control by the experienced teachers (very confusing). (It seems to be an official paper, so contractions like that's and it's are not recommened).
So that every young person can analize and solve problems on his own.The thing that Edison was most afraid of, was darkness. By inventing a lamp he gained a great convenience for himself as well as for mankind.
Scientific activities are done with these feelings (which ones exactly?), thoughts, with enthusiasm and excitement at ... School
Model rockets, model planes, tenis (tennis?) projects, are carried out by our students in many areas of scientific activity (hard to understand at all).
Moreover, our students prepeare physics, chemistry, biology and mathematics to participate in the national and international Olimpic competitions .(I understand what you mean by Olympic competitions but I guess another term should be used for English speaking people. How can you prepare physics or chemistry to participate in a competition? Those sciences seem to be ever prepared ) During the week and at the weekends work with Olympic counselor. (Who works? Where is the subject?)
I still do not understand if this is a coherent text or just several sentences.
Student or Learner