The research aims to analyze the teaching of natural sciences in the demonstration of the experimental tasks in the upper basic students of the Gil Alberto Rivadeneira Arteaga Educational Unit of the Chone canton in 2022, this represents the practical and experimental criterion of learning from the first years, where they promote concrete experiences related to theory and practice, to reach the acquisition of new knowledge that is manifested in its responsible relationship with the natural environment. The applied methodology had a qualitative approach, the applied methods were inductive-deductive and experimental, the most appropriate technique was the interview where the theoretical and methodological criteria were considered. As a result, it can be stated that the teaching of natural sciences influences the demonstration of experimental tasks in upper basic students.