Sh. R. Sharipov, G. N. Sharifov, H. Jorayev and J. Bazorova 2021. SCIENTIFIC AND PEDAGOGICAL BASES OF CONDUCTING CHEMICAL EXPERIMENTS AT SCHOOL. International Engineering Journal For Research & Development. 6, 6 (Nov. 2021), 6. DOI:https://doi.org/10.17605/OSF.IO/HFYKM.