The article introduces a science education intervention using life-cycle analysis of consumer products. The intervention aims to promote lower secondary school students’ science career awareness and interest toward science studies. In this study, two lower secondary school teachers planned an intervention on life-cycle analysis, which aimed to be relevant for the students from an individual, societal, and vocational perspective. The study then examined how students perceived the relevance of the intervention, based on classroom observations, students’ life-cycle presentations, questionnaire responses, as well as interviews. The findings indicate that students found life-cycle assessment to be a relevant topic both from an individual and societal perspective. However, findings on vocational relevance were two-fold, as students gained knowledge on different occupations, but this did not seem to directly affect their future career aspirations.