“…Various studies have examined interventions to assist students in understanding complex systems (Heppenstall, Crooks, See, & Batty, ; Liu & Hmelo‐Silver, ; Peppler, Thompson, Danish, Moczek, & Han, ; Scherer, Holder, & Herbert, ; Sweeney & Sterman, ; Yoon & Hmelo‐Silver, 2017). Teaching about the general characteristics of complex systems may help students build conceptual links between domains (Chi, Roscoe, Slotta, Roy, & Chase, ; Goldstone, ; Jacobson, Kapur, So, & Lee, ; Lemke & Sabelli, ; Rates, Mulvey, & Feldon, ). This study examines students' perceptions of the structure of matter in in terms of characteristics of complex systems and how it relates to learning approaches.…”