Students calculate the speed of cars moving on a highway as a lab activity. Directions for teachers, objectives, goals, grade level (7-12), materials and procedures are detailed. (JP)

Several suggestions are made for using empty duplicating fluid containers in science experiments and activities. (JR)

Describes techniques for studying historic changes in climate by analysis of pollen preserved in peat bogs. Illustrates the methodology and data analysis techniques by reference to results from English research. (AL)

Describes the use of inquiry techniques in a laboratory-based college course in cell biology: cytology, microbiology, histology, and microtechnique. (AL)

Shows how a simple investigation of the enzyme, thrombin, can provide a series of experiments giving information on enzyme characteristics. The results also provide a basis for discussion of the coagulation mechanism and related phenomena. (Author/AL)

In a senior modern physics laboratory, design" or ingenuity" experiments were introduced to acquaint students with methods of doing complete experiments. The former deals with proposed long term studies while the latter deals with apparatus and short term actual studies. Students rated the design" experiments higher. (Author/TS)