Science centers are institutions for the promotion of informal science learning to students and the public (Oppenheimer, 1972; Danilov, 1982; Tan & Subramaniam, 1998; Delacote, 1998). They have come to be regarded as part of a nation’s scientific, technological, and educational infrastructure. Science centers promote their mission objectives in a number of ways: exhibitions on a range of themes, science enrichment programs that complement science lessons taught in schools, mass-based promotional activities such as science festivals and competitions, and so on. However, exhibitions remain the core and distinctive feature of the attractions in science centers.