Extracurricular (ext). Extracurricular activities are not part of the standard lesson plan or classroom environment, yet are part of, or are strongly linked to the school program. Examples include field trips, mobile science labs, summer camps,guest lectures, and visits to science centers. These types of interventions usually aim at raising curiosity (interest), encounters with role models/scientists (normality) and relatedness. Literature suggests that extracurricular activities can provide learners valuable and particularly motivational opportunities to learn science (Rennie & McClafferty, 1996).1