“…Research shows that scientific process skill levels of 6th and 7th graders are equal (Böyük, Tanık & Saraçoğlu, 2011), while 8th graders' level is higher than 7th graders' (Böyük et al, 2011;Meriç & Karatay, 2014). Different from these findings, a study investigating the scientific process skills of the 5th, 6th, 7th, and 8th graders showed that the 6th graders were better at scientific process skills than the students of other grade levels and the 5th and 8th graders, however, did well at the half of the scientific process skills specified (Bostan Sarioğlan, Gedik & Can, 2016).…”