This booklet, the second in a series, reports on the results of a year-long research project conducted in an experimental school associated with the Learning Research and Development Center, University of Pittsburgh. Specifically, this is a report of findings pertaining to one major setting in the experimental school, the science lab. The science lab setting is first described from the vantage point of a participant observer. Attention is paid to the lab as it is used by intermediate grade pupils. Pupils' beliefs about the science lab are then presented and discussed. The aim is to show how pupils react to the planned science curriculum. Finally, the results of a behavior observation scale study are reported which show how pupils act on their beliefs about the science lab. (Author/DMT)