This article mainly addresses the Hong Kong new Information Technology in Education policy to have further integration of information technology into the learning and teaching process, particularly on the design of IT-supported inquiry learning in the primary General Studies. The article focuses on the collaborative effort of the teacher educators from the Institute of Education and the curriculum developers of the Hong Kong Education City in the design of a web-based learning unit on "Earth Movement" to support pupils' inquiry learning of science. The article discusses the different modes of inquiry learning with the web-based learning unit in primary General Studies