Describes a high school chemistry experiment which involves the reaction between calcite and hydrochloric and sulfuric acids. This reaction can be carried out as a projected demonstration and on an individual basis. (HM)

A course is described that is designed to encourage exploration, conceptual invention, and expansion of an idea. Results are given that relate to curricular experimentation with chemistry. (SA)

Describes an experiment comparing the monolingual and bilingual approaches to foreign language teaching. Two 6th grade classes in English were taught for nine class periods, one by the monolingual and one by the bilingual method. A slight advantage in favor of the monolingual method is reported. (IFS/WGA)

Describes projects for high school physics classes that use computer tools including integrated software packages, graphing calculators, and calculator-based lab and microcomputer-based lab. Sites available on the World Wide Web are discussed and specific examples of experiments based on Galileo and Newton are included. (LRW)

Presents a laboratory exercise on spicy food and body temperature that introduces the scientific method to introductory biology students. Suggests that when students perform their own experiments which they have developed, it helps with their understanding of and confidence in doing science. (Author/SOE)

Describes an experiment to illustrate the effect of food source and added nutrients (N) on microbial activity in the soil. Supplies include air-dried soil, dried plant material, sources of carbon and nitrogen, a trap such as KOH, colored water, and a 500-mL Erlenmeyer flask. Includes a diagram of an incubation chamber to demonstrate microbial…

Argues that many laboratory experiments are designed to be clever and challenging but instead are confusing and frustrating for most students. Describes the use of a teaching approach in English courses for chemistry laboratories in which students get to do the experiment for fun and practice, then meet with the teacher for discussion before…

Describes a classroom unit that provides preschoolers with hands-on experience, using common dirt as a way to develop scientific thinking and foster an appreciation of biology, ecology, and the natural world. Focuses on practicing the basic steps in the scientific process, including prediction, observation, documentation, conclusions, and…

Presents numismatic experiments that cover a range of topics that tie physical science and chemistry to society and history. Discusses measuring length; measuring mass; metals, alloys, and amalgams; reactivity of metals and electrochemistry; reactions of metals with acids; money to burn; magnetic properties of coins; inertia; refraction;…

Presented are the procedures and a discussion of the results for an experiment in which students select unknown carboxylic acids, determine their melting points, and investigate their solubility behavior in water and ethanol. A table of selected carboxylic acids is included. (CW)

Considered is an experiment used to investigate one-dimensional, nonuniform acceleration. Presented is the correct expression for the acceleration, generalized to include friction and describe simulations supporting student data. The feasibility of the experiment is questioned. (CW)

The use of computer spreadsheet programs in the physics laboratory is discussed. An example of this application with a conservation of energy laboratory is presented including the cases of a rolling sphere and a sliding sphere. (CW)

Presents a laboratory experiment which illustrates the formation of tris(phenanthroline)cobalt complexes in the 2+ and 3+ oxidation states, the effect of coordination on reactions of the ligand, and the use of a ligand displacement reaction in recovering the transformed ligand. Uses IR, UV-VIS, conductivity, and NMR. (MVL)

Presents a short reaction sequence that allows the student to determine by spectroscopic methods the constitution and stereochemistry of the reaction products. Reports the interpretations needed to illustrate the usefulness of the spectroscopic method. Notes the products of the Michael-Aldol reaction have not been reported in the literature. (MVL)

Described are the basic materials and procedures used to study defensive burying behavior and suggested laboratory projects. Discusses live targets, non-living targets, social variables, and previous experiences of the subjects. (CW)