Grade 8 students using the Introductory Physical Science course improved their scores on a test of science processes (observing, comparing, classifying, quantifying, etc.) after studying the first five chapters of the materials. Some evidence supporting a hierarchy of process skills is reported. (AL)

This unit, intended for students in grades eight or nine, is a revised version of ED 053 990. The teacher's guide lists the aims of the unit, behavioral objectives, suitable references and audio-visual aids, required apparatus and materials, and provides teaching notes for each activity, including comments concerning microbiological techniques.…

This unit in the series prepared by the Australian Science Education Project is intended for students capable of abstract reasoning and as an introduction to other high level units in the series. The core activities suggest a number of activities that should lead students to recognize that a system is something that transforms an input into an…