This book contains classroom experiments designed to promote group skills. Each lesson has 4 parts: a 3-minute set-up; 5-minute warm-up, 25-minute experiment, and 5-minute clean-up. During each part, each member of the group is responsible for performing a specific task. Included are 34 labs that cover a range of topics: observations, physical properties, physics, chemistry, mixtures and compounds, mineral identification, solvents, salinity and temperature, gastropods, microscopes, cells, enzymes, pendulums, the solar system, earthquakes, air quality, and biodegradable materials. Appendices include report forms and a list of suppliers. (JRH)