1. Editorial Introduction : Issues faced by doctoral students on their research journey / Shirley Simon, Ilka Parchmann and Christina Ottander -- Relocalisations and Renegotiations : Framing a project about science in preschool / Sofie Areljung -- Teachers Learning from Young Children During a Cognitive Acceleration Programme / Anne Robertson -- Abilities of Participants at Students? : Science Competitions / Christine K¿hler -- Studying Motivation in the Science Classroom / Jenny M Hellgren -- Exploring Learning Experiences and Meaning-making in Environmental and Sustainability Issues / Annika Manni -- The Lexical and Grammatical Structure of Science Examination Questions / Adrian Day -- What do Students Think About Scientists and Their Professions? / Wilfried Wentorf -- How to Develop an Understanding for Chemistry? : Investigating learning progressions for university entrants / Julian Rudnik -- Do We Really Know What Science is All About? : Researchers' and students' perceptions of science / Frederike Tirre -- Finding and Elaborating Frameworks for Analysing Context-Based Chemistry Problems / Karolina Broman -- From "What" to "How" : Researching students' meaning-making in sustainability dilemmas / Katarina Ottander -- Line Graphs in Mathematics and Science : The use of different learning approaches / Elizabeth Wady -- Insights and Lessons from Primary Science Teachers' Initial Professional Learning and Collaborative Practices in Questioning / Tan Ying Chin -- Conclusions / Shirley Simon, Christina Ottander and Ilka Parchman.