Describes a number of activities designed to assist student understanding of the phenomenon of light bending when it passes from one meduim to another. (JR)

Provides directions for the construction of two different kites in the junior high school science classroom. (JR)

Describes the sturcture and asexual reproduction of the fungus Pilobolus and outlines a number of experiments with this organism that are suitable for secondary school biology students. (JR)

Discusses the three phases of a three-day intensive research study field trip: planning and pre-trip training; actual trip; and post-trip report, research and data organization, and final trip evaluation. Included is a sample program of the limnology field trip taken by the Grafton High School, Wisconsin. (CC)

Discusses the use of shadows to explain such scientific phenomena as umbra and penumbra, eclipses, day and night, seasons, and length of day. Indicates that shadow plays can serve to help the students in understanding more about light. (CC)

Discusses damages of oil tanker spillage to the marine organisms and scientists' research in oil pollution removal techniques. Included is a list of learning activities concerning the causes and effects of oil pollution and methods of solving the problem. (CC)

Presents some examples of using college, university, industrial, and governmental raw data to conduct physics classroom experiments and activities. Indicates that the approach has the advantages of making the student work publishable and of motivating the student to improve the quality of lab reports. (CC)

Discusses an experiment on friction to illustrate the "law" governing the relationship of the friction force to the volocity of air track cars. (CC)

Four packets comprise the electricity component of an enrichment program for gifted elementary students. Provided in the introductory packet are sample pre- and posttests for the unit. Remaining packets present vocabulary lists, student worksheets on beginning circuitry, and suggestions for student projects (such as making a battery, constructing…

This document presents a series of physics experiments which allow students to determine the value of unknown electrical capacitors. The exercises include both parallel and series connected capacitors. (SL)

Describes an experiment designed to acquaint the chemistry student with polymerization reactions, vacuum techniques, liquid scintillation counting, gas-liquid chromatography, and the handling of radioactive materials. (MLH)

Describes an experiment in which luminescence is observed during a reaction between sodium borohydride and trisbipyridalruthenium (III). Includes a discussion of the theory of chemiluminescence. (MLH)

Suggests replacing traditional organic chemistry laboratory exercises with experiments involving an elementary research approach. The student is provided with short laboratory projects, normally involving simple reactants and products; it is an important criterion that the reactions chosen are not normally featured in student textbooks. (MLH)

Discusses the Peltier, or thermoelectric effect, which provides a way of cooling a system by coupling it thermally to the junction of two materials suitably chosen, shaped, and connected to a d.c. current. Describes an apparatus which simply and inexpensively demonstrates this effect. (MLH)