The 20th century saw some of the most important technological and scientific discoveries in the history of humankind. The space shuttle, the internet, and other modern advances changed society forever, and yet many students cannot imagine what life was like before these technologies existed. In the project described here, students take a firsthand…

Reviews a chem-study experiment in which students weigh and compare equal volumes of gases and enter their data into a microcomputer. Benefits of using the microcomputer include: (1) data table generation; (2) elimination of calculation errors; (3) student conclusions which are meaningful; and (4) efficient grading time for the teacher. (DH)

Describes a chemistry lab experiment in which a microcomputer is used to graph data. In the experiment a catalyst is used to decompose a commercial bleach. The computer's game port is used with a potentiometer to plot the volume of oxygen gas produced versus elapsed time. Courseware information is included. (TW)