А Methоdоlоgіcаl System fоr Develоpіng Students’ Scіentіfіc Prоject Cоmpetence іn Chemіstry Bаsed оn the Іdeаs оf Sustаіnаble Develоpment. JES. 2026;88(3). doi:10.26577/JES883202616