Fikriye KIRBAĞ ZENGİN, Gonca KEÇECİ and Tuba AYDIN 2019. THE EFFECT OF STEM ACTIVITIES ON PRESCHOOL STUDENTS’ SCIENTIFIC PROCESS SKILLS. International Journal of Eurasia Social Sciences . 10, 36 (Jun. 2019), 396–411. DOI:https://doi.org/10.35826/ijoess.2400.