“…These activities are quite suitable for students in the rural outskirts of cities and provide equity between students in different economic settings, because they can be implemented with simple and cheaper materials (Uysal & Eryılmaz, 2002). Hands-on experiments improve students' academic success, allow them to develop positive attitudes towards science (Bredderman, 1983;Shymansky, Kyle, & Alport, 1983;Shymansky, Hedges, & Woodworth, 1990;Turpin, 2000;Yu & Bethel, 1991), and facilitate students' learning of science concepts. These experiments also help them to acquire problem solving and scientific thinking skills (Leung, 2008).…”