Describes how students in a geoscience course are introduced to geographic information systems (GIS), a computer-assisted system for the acquisition, storage, analysis, and display of geographic data, through a practical experience involving collecting data and inputting it into a GIS program called IDRISI. (MKR)

Laser refractometry is a science-technology-based activity that requires students to manipulate a variety of equipment, tools, materials, and critical-thinking skills. Students use a laser to measure the percent of glucose in a solution by calibrating the system, taking measurements, and computing the concentration. (MKR)

Discusses an activity in which computers with color monitors can be used to demonstrate light blending with relative ease. (MKR)

Presents activities using thermocouples to investigate the temperatures at which candles burn and popcorn pops. (MKR)

Describes the theory behind the workings of the Hubble Space Telescope, the spherical aberration in the primary mirror that caused a reduction in image quality, and the corrective device that compensated for the error. (JRH)

Describes activities that demonstrate the relationship of mathematics and science and their use in solving real-world problems like solid waste disposal. (JRH)

Conducted a study to identify the factors that predict persistence and success in baccalaureate engineering programs. Reports that the variables that contributed significantly were freshman achievement test scores in algebra and chemistry, high school grade point average, degree of focus of science interests, motive for engineering choice, and…

Describes a simple, safe, and inexpensive hands-on demonstration of normal and abnormal coagulation using bovine blood plasma. (JRH)

Describes activities designed to give summer school students an appreciation of the value of an integrated approach to scientific investigation. (JRH)

Describes activities that take advantage of heavy snowfalls to study numerous geological concepts including sedimentation, precipitation, morphology and metamorphosis of crystals, compaction and cementation, fossilization, and erosion. (JRH)