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Peer reviewedFriesen, R. J., Ed. – Journal of Chemical Education, 1975
Describes an experiment, using a soap bubble raft, intended to provide insight into the orderly packing of spherical objects and the properties of metallic crystals. Also describes a solubility product experiment which uses barium hydroxide. (MLH)
Descriptors: Chemical Equilibrium, Chemistry, Instructional Materials, Laboratory Experiments
Peer reviewedPomeroy, Roland K.; And Others – Journal of Chemical Education, 1975
The use of atomic absorption techniques to determine heavy metals in trace amounts is demonstrated by analyzing a solution of human hair digested in nitric acid. (MLH)
Descriptors: Chemical Analysis, Chemistry, College Science, Higher Education
Peer reviewedOlson, M. V.; Crawford, J. M. – Journal of Chemical Education, 1975
Describes qualitative and quantitative experiments using ion exchange columns; after introductory exercises the students determine the total ion concentration in sea water and blood plasma. (MLH)
Descriptors: Chemical Analysis, Chemistry, Chromatography, College Science
Peer reviewedWollrab, Adalbert – Journal of Chemical Education, 1975
Descriptors: Chemical Analysis, Chemistry, Chromatography, College Science
Peer reviewedTrodden, W. G. – School Science Review, 1975
Descriptors: College Science, Electric Circuits, Electronics, Higher Education
Peer reviewedWolf, Walter A., Ed. – Journal of Chemical Education, 1975
Descriptors: Chemistry, Demonstrations (Educational), Laboratory Equipment, Laboratory Experiments
Peer reviewedMasaguer, J. R.; And Others – Journal of Chemical Education, 1975
The stoichiometry of the reaction between potassium chromate and barium chloride is determined by analysis of precipitates by mixing various amounts of both solutions. (GS)
Descriptors: Chemical Reactions, Chemistry, College Science, Higher Education
Peer reviewedPreer, James R. – Journal of Chemical Education, 1975
Descriptors: Chemical Reactions, Chemistry, College Science, Higher Education
Peer reviewedBrisse, F.; Sundararajan, P. R. – Journal of Chemical Education, 1975
Describes an experiment in which the beam of X-rays is simulated through the use of a laser as a monochromatic light source and the crystal is replaced by photographically prepared masks. A strong diffraction pattern as large as 20 cm. can be obtained. (GS)
Descriptors: Chemistry, College Science, Higher Education, Instructional Materials
Peer reviewedCronholm, Lois S.; Neff, Stuart E. – Journal of College Science Teaching, 1975
Descriptors: Biology, College Science, Entomology, Higher Education
Peer reviewedOelfke, William C. – American Journal of Physics, 1975
Presents a simple method of analysis in which the student can integrate, point by point, any interferogram to obtain its Fourier transform. The manual technique requires no special equipment and is based on relationships that most undergraduate physics students can derive from the Fourier integral equations. (Author/MLH)
Descriptors: Calculus, College Science, Higher Education, Instructional Materials
Peer reviewedMilstein, Frederick; Smith, Paul W., Jr. – American Journal of Physics, 1975
Discusses the planning and implementation of a laboratory course in which students carried out experimental measurements, reduced data, conducted literature surveys, and presented their results in the form of original research papers. (Author/MLH)
Descriptors: College Science, Course Descriptions, Engineering, Higher Education
Peer reviewedKapusta, J. I. – American Journal of Physics, 1975
In a Millikan oil drop experiment, there is a best measuring time for observing the drop, due to Brownian motion of the drop and the experimenter's reaction time. Derives an equation for the relative error in the measurement of the drop's excess charge, and obtains a formula for the best measuring time. (Author/MLH)
Descriptors: College Science, Higher Education, Instructional Materials, Laboratory Experiments
Peer reviewedAndrews, I. M. – School Science Review, 1975
Descriptors: Biochemistry, Biology, Chemical Analysis, College Science
Peer reviewedKordan, H. A. – School Science Review, 1974
Describes the experimental procedure and expected outcome in the growth of rice seedlings with light conditions and water aeration as variables. (GS)
Descriptors: Biology, Botany, College Science, Higher Education
