Describes an experiment that gives useful insight into ideas of solvation and polarity of solvents. (GS)

Describes teaching schemes and apparatus designed to give the teacher and the student a range of reliable, workable experiments to explore the world of small static charges. (GS)

The design of a freshman chemistry laboratory program involving nontraditional qualitative investigations of metal ion properties is explained. Experiments are discussed which focus on synthesis of a metal salt, properties of metal ions and their separations, and oxidation states of metals. (DT)

Describes a semistructured approach to the laboratory situation in organic chemistry. (Author/PEB)

Directions are given for student learning activities on illusions, shadows, the spectrum, and colors. (DT)

Describes an undergraduate laboratory project involving lecithin which integrates two general aspects of lipid methodology: chromatographic techniques and use of enzymes specificity to obtain structural information. (Author/SLH)

Described is thin-layer chromatography (TLC), a technique that can be conveniently used in the laboratory to generate evidence supporting the principle that degrees of biochemical similarity reflect degrees of evolutionary relatedness among organisms. (Author/PEB)