We present a research on science learning experiences of initial teacher training students at two Spanish universities. We collected 263 life-stories among students of Degree in Preschool and Primary Education -equal halves-, where students explained their experiences at Preschool, Primary and Secondary Education, and at non-academic contexts. These life-stories were qualitatively analyzed, by defining content categories and subcategories, and also quantitatively analyzed, by counting the frequency of appearance of fragments classified within them. We present results regarding contents, didactic resources, methodological approaches, subjective aspects, and learning at non-academic contexts. These clearly show the need to promote, from initial teacher training, science learning experiences framed in a constructivist model involving a leading role of students, and the use of active methodologies and learning contexts other than the classroom.