This unit further contributes to the development of background knowledge and skills necessary to be an effective primary school and/or early childhood teacher in science and technology. It builds upon the first unit (ADST107) by broadening preservice teachers’ understanding of a range of science and technological concepts. This unit again engages preservice teachers with the themes of matter and energy within a sustainability framework, but with a particular focus on a range of concepts that are relevant to various primary school and early childhood curricula such as earth and space, life and living, ecosystems and biodiversity, matter and materials and energy and change.