“…The studies about magnetic properties between the ages 4-6 usually tell us a large number of children of this age discover the forces of attraction of magnets on metal objects and the forces of attraction and repulsion between magnets, while they also start to learn which substances are attracted by magnets and which are not. Moreover, children may think that magnets attract all metals or that larger magnets are stronger than the smaller ones (e.g., Piaget & Chollet, 1973;Ravanis, 1994Ravanis, , 1996Fedele, Michelini, & Stefanel, 2005;Papadopoulou & Poimenidou, 2008;Christidou, Hatzinikita, & Dimitriou, 2009;Wilcox & Richey, 2012). Children older than those ages link magnetic properties with gravitational phenomena (e.g., Selman, Krupa, Stone, & Jacquette, 1982;Bradamante & Michelini, 2005;Bradamante & Viennot, 2007), a kind of electricity, pressure of air, magnetic stream, a kind of lighting, rays and heat which are concepts derived from everyday life or education (e.g., Barrow, 1987;Erickson, 1994;Bar, Zinn, & Rubin, 1997;Bar & Zinn, 1998;Herrmann, Hauptmann, & Suleder, 2000;Maloney, O'kuma, Hieggelke, & Van Heuvelen, 2001;Anderson, Lucas, & Ginns, 2003;Ravanis, Pantidos, & Vitoratos, 2009).…”