Children are science-interested, curious explorers. Typically, science interest and engagement tends to drop during adolescence, but if maintained can prompt future involvement with STEM. Science museums can trigger short-term interest and engagement but can also offer long-term programmes to maintain these, develop science identities, increase ability, confidence and career aspirations. We present courses, internships, and research engaging students for weeks, months, or even years. With frameworks, evaluation findings, and theoretical and research perspectives, these can be taken as successful, replicable models. Join our conversation about the importance of not only triggering interest, but also maintaining it long-term t. Panellists have overcome diverse challenges, and have many tips to share!