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Poce-Fatou, J. A.; Bethencourt-Nunez, M.; Moreno, C.; Pinto-Ganfornina, J. J.; Moreno-Dorado, F. J. – Journal of Chemical Education, 2008
This article presents a lab experience to study detergency from a physicochemical point of view intended for undergraduate students. By means of a simple experimental device, we analyze the influence of the surfactant concentration in both distilled water and tap water. Our method is based on the measurement of diffuse reflectances of polyester…
Descriptors: Undergraduate Students, Program Development, Laboratory Experiments, Science Experiments
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Mathews, John H. – Journal of Computers in Mathematics and Science Teaching, 1989
Illustrates how muMATH can be used for manipulating abstract differentiation rules, optimization, implicit differentiation, related rules, and verifying the chain rule. (MVL)
Descriptors: Calculus, Computer Graphics, Computer Software, Computer Uses in Education
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Schaefer, Paul – Journal of Computers in Mathematics and Science Teaching, 1989
Provides a program listing in True BASIC which constructs several kinds of matrices: (1) matrices with integral entries that have inverses that have integral entries; (2) matrices with integral entries that have inverses that are rational numbers with reasonable denominators; and (3) matrices with integral entries and prescribed integer…
Descriptors: Algebra, College Mathematics, Computer Oriented Programs, Computer Software
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Batt, Russell H., Ed. – Journal of Chemical Education, 1989
Describes two chemistry computer programs: (1) "Eureka: A Chemistry Problem Solver" (problem files may be written by the instructor, MS-DOS 2.0, IBM with 384K); and (2) "PC-File+" (database management, IBM with 416K and two floppy drives). (MVL)
Descriptors: Chemistry, College Science, Computer Oriented Programs, Computer Software Reviews
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Science Teacher, 1989
Describes two software programs for the Apple II series and TRS-80 Models III and IV: (1) "Personal Energy Inventory" (grades 9-12, records and manages data, not considered user friendly); (2) "Energy Conservation" (grades 7-12, aids in converting and problem solving, uses drill and practice). (MVL)
Descriptors: Computer Software Reviews, Computer Uses in Education, Data Collection, Drills (Practice)