Abstract In science, subject-specific languages have a communicative and epistemic function. Thus, in science education learners need to both learn the language of science and learn through this specific language. Based on the assumption that learning subject-specific languages can be compared to second language acquisition, the study transfers Task-based Language Teaching to science education and explores the language needs of Austrian upper secondary school learners in science education when writing a Pre-Scientific Paper (PSP), using multiple methods (semi-structured interviews, online questionnaires) and data sources (curriculum, learners, teachers). The study reveals pre-scientific writing as a relevant overall task, identifies over 30 target tasks, describes subject-specific linguistic challenges students face when performing these tasks and shows how they are supported in their pre-scientific writing skills. Altogether, the paper shows the importance of having a more regular and systematic implementation of subject-specific language tasks in upper secondary science education.