This paper provides a critical review of the changes to the role of practical work in the science curriculum in England over the last forty years. The science curriculum over this period appears to place an emphasis on an approach to practical enquiry that suggests school students can act like "real" scientists. This paper provides a critical perspective of this view as it traces the developments of practical work and draws on the literature and on empirical work about how practical science in the secondary school (ages 11 to 18 years) has been enacted over this time period and gives some suggestions about the current situation and how practical work might develop in the future.